87960806978 has 24 divisors (see below), whose sum is σ = 145166286720. Its totient is φ = 39943589400.

The previous prime is 87960806891. The next prime is 87960806981.

87960806978 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76523 + ... + 426353.

It is an arithmetic number, because the mean of its divisors is an integer number (6048595280).

Almost surely, 2^87960806978 is an apocalyptic number.

87960806978 is a deficient number, since it is larger than the sum of its proper divisors (57205479742).

87960806978 is a wasteful number, since it uses less digits than its factorization.

87960806978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350894 (or 350883 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 68.

The spelling of 87960806978 in words is "eighty-seven billion, nine hundred sixty million, eight hundred six thousand, nine hundred seventy-eight".