74606899860648 has 96 divisors (see below), whose sum is σ = 204920736321600. Its totient is φ = 24516968985600.

The previous prime is 74606899860637. The next prime is 74606899860667. The reversal of 74606899860648 is 84606899860647.

74606899860648 is a `hidden beast` number, since 7 + 460 + 6 + 8 + 9 + 98 + 6 + 0 + 64 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72946483 + ... + 73962173.

It is an arithmetic number, because the mean of its divisors is an integer number (2134591003350).

Almost surely, 2^{74606899860648} is an apocalyptic number.

It is an amenable number.

74606899860648 is an abundant number, since it is smaller than the sum of its proper divisors (130313836460952).

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

74606899860648 is a wasteful number, since it uses less digits than its factorization.

74606899860648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030143 (or 1030136 counting only the distinct ones).

The product of its (nonzero) digits is 6019743744, while the sum is 81.

Subtracting 74606899860648 from its reverse (84606899860647), we obtain a palindrome (9999999999999).

The spelling of 74606899860648 in words is "seventy-four trillion, six hundred six billion, eight hundred ninety-nine million, eight hundred sixty thousand, six hundred forty-eight".