89375991957 has 24 divisors (see below), whose sum is σ = 147558384896. Its totient is φ = 51066088416.

The previous prime is 89375991949. The next prime is 89375991967. The reversal of 89375991957 is 75919957398.

89375991957 is a `hidden beast` number, since 89 + 375 + 9 + 91 + 95 + 7 = 666.

It is not a de Polignac number, because 89375991957 - 2³ = 89375991949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89375991917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499428 + ... + 654354.

Almost surely, 2^89375991957 is an apocalyptic number.

It is an amenable number.

89375991957 is a deficient number, since it is larger than the sum of its proper divisors (58182392939).

89375991957 is a wasteful number, since it uses less digits than its factorization.

89375991957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164097 (or 164094 counting only the distinct ones).

The product of its digits is 192893400, while the sum is 72.

The spelling of 89375991957 in words is "eighty-nine billion, three hundred seventy-five million, nine hundred ninety-one thousand, nine hundred fifty-seven".