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87746863663 = 733019398149
BaseRepresentation
bin101000110111000011…
…1101110001000101111
322101111020012112010101
41101232013232020233
52414201144114123
6104151011451531
76224310014644
oct1215607561057
9271436175111
1087746863663
11342388a9448
121500a2b6ba7
1383750a7b04
14436598bdcb
152438665aad
hex146e1ee22f

87746863663 has 8 divisors (see below), whose sum is σ = 88978562000. Its totient is φ = 86515967808.

The previous prime is 87746863619. The next prime is 87746863669. The reversal of 87746863663 is 36636864778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87746863663 - 29 = 87746863151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87746863595 and 87746863604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87746863669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21313 + ... + 419461.

It is an arithmetic number, because the mean of its divisors is an integer number (11122320250).

Almost surely, 287746863663 is an apocalyptic number.

87746863663 is a deficient number, since it is larger than the sum of its proper divisors (1231698337).

87746863663 is a wasteful number, since it uses less digits than its factorization.

87746863663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401241.

The product of its digits is 146313216, while the sum is 64.

The spelling of 87746863663 in words is "eighty-seven billion, seven hundred forty-six million, eight hundred sixty-three thousand, six hundred sixty-three".

Divisors: 1 73 3019 220387 398149 29064877 1202011831 87746863663