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7808664012000 = 253532409127011
BaseRepresentation
bin111000110100001100010…
…1001010000010011100000
31000122111112012222010111020
41301220120221100103200
52010414120441341000
624335130053445440
71434104654645355
oct161503051202340
930574465863436
107808664012000
1125406aa299535
12a61455940880
1344847a566b07
141cdd2711262c
15d81c4450ba0
hex71a18a504e0

7808664012000 has 192 divisors, whose sum is σ = 25583192264448. Its totient is φ = 2082146880000.

The previous prime is 7808664011977. The next prime is 7808664012029. The reversal of 7808664012000 is 2104668087.

It is a super-2 number, since 2×78086640120002 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289078495 + ... + 289105505.

It is an arithmetic number, because the mean of its divisors is an integer number (133245793044).

Almost surely, 27808664012000 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 7808664012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12791596132224).

7808664012000 is an abundant number, since it is smaller than the sum of its proper divisors (17774528252448).

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

7808664012000 is a wasteful number, since it uses less digits than its factorization.

7808664012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51130 (or 51112 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 7808664012000 in words is "seven trillion, eight hundred eight billion, six hundred sixty-four million, twelve thousand".