74596664978 has 64 divisors (see below), whose sum is σ = 130790246400. Its totient is φ = 31552597440.

The previous prime is 74596664929. The next prime is 74596664981. The reversal of 74596664978 is 87946669547.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6499601 + ... + 6511067.

It is an arithmetic number, because the mean of its divisors is an integer number (2043597600).

Almost surely, 2^74596664978 is an apocalyptic number.

74596664978 is a deficient number, since it is larger than the sum of its proper divisors (56193581422).

74596664978 is a wasteful number, since it uses less digits than its factorization.

74596664978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11775.

The product of its digits is 548674560, while the sum is 71.

The spelling of 74596664978 in words is "seventy-four billion, five hundred ninety-six million, six hundred sixty-four thousand, nine hundred seventy-eight".