87957675978 has 32 divisors (see below), whose sum is σ = 178726377984. Its totient is φ = 28851630192.

The previous prime is 87957675959. The next prime is 87957676013.

87957675978 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275601 + ... + 501867.

It is an arithmetic number, because the mean of its divisors is an integer number (5585199312).

Almost surely, 2^87957675978 is an apocalyptic number.

87957675978 is an abundant number, since it is smaller than the sum of its proper divisors (90768702006).

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

87957675978 is a wasteful number, since it uses less digits than its factorization.

87957675978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227306.

The product of its digits is 1867017600, while the sum is 78.

The spelling of 87957675978 in words is "eighty-seven billion, nine hundred fifty-seven million, six hundred seventy-five thousand, nine hundred seventy-eight".