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87012095199744 = 29311134112776079
BaseRepresentation
bin10011110010001100010101…
…000001101000101000000000
3102102002021102112001210212010
4103302030111001220220000
542401101232332342434
6505020445452132520
724220262555644551
oct2362142501505000
9372067375053763
1087012095199744
11257a7693381030
12991363a767140
133972289274c70
14176b59d30a328
15a0d5b6e109e9
hex4f2315068a00

87012095199744 has 640 divisors, whose sum is σ = 281173683732480. Its totient is φ = 23558130892800.

The previous prime is 87012095199719. The next prime is 87012095199749. The reversal of 87012095199744 is 44799159021078.

It is a super-3 number, since 3×870120951997443 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (87012095199749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1143669097 + ... + 1143745175.

It is an arithmetic number, because the mean of its divisors is an integer number (439333880832).

Almost surely, 287012095199744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87012095199744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140586841866240).

87012095199744 is an abundant number, since it is smaller than the sum of its proper divisors (194161588532736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87012095199744 is a wasteful number, since it uses less digits than its factorization.

87012095199744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76292 (or 76276 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 66.

The spelling of 87012095199744 in words is "eighty-seven trillion, twelve billion, ninety-five million, one hundred ninety-nine thousand, seven hundred forty-four".