87097707957 has 12 divisors (see below), whose sum is σ = 125750537664. Its totient is φ = 53598589200.

The previous prime is 87097707943. The next prime is 87097708003. The reversal of 87097707957 is 75970779078.

It is a happy number.

It is not a de Polignac number, because 87097707957 - 2²² = 87093513653 is a prime.

It is a super-2 number, since 2×87097707957² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87097707157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85894669 + ... + 85895682.

It is an arithmetic number, because the mean of its divisors is an integer number (10479211472).

Almost surely, 2^87097707957 is an apocalyptic number.

It is an amenable number.

87097707957 is a deficient number, since it is larger than the sum of its proper divisors (38652829707).

87097707957 is a wasteful number, since it uses less digits than its factorization.

87097707957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171790380 (or 171790367 counting only the distinct ones).

The product of its (nonzero) digits is 54454680, while the sum is 66.

The spelling of 87097707957 in words is "eighty-seven billion, ninety-seven million, seven hundred seven thousand, nine hundred fifty-seven".