89137293957 has 12 divisors (see below), whose sum is σ = 128757949164. Its totient is φ = 59422979520.

The previous prime is 89137293953. The next prime is 89137293979. The reversal of 89137293957 is 75939273198.

89137293957 is a `hidden beast` number, since 8 + 91 + 372 + 93 + 95 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23839668801 + 65297625156 = 154401^2 + 255534^2 .

It is not a de Polignac number, because 89137293957 - 2² = 89137293953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89137293894 and 89137293903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89137293953) 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, 181207 + ... + 459467.

It is an arithmetic number, because the mean of its divisors is an integer number (10729829097).

Almost surely, 2^89137293957 is an apocalyptic number.

It is an amenable number.

89137293957 is a deficient number, since it is larger than the sum of its proper divisors (39620655207).

89137293957 is a wasteful number, since it uses less digits than its factorization.

89137293957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313860 (or 313857 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The spelling of 89137293957 in words is "eighty-nine billion, one hundred thirty-seven million, two hundred ninety-three thousand, nine hundred fifty-seven".