74890475856 has 100 divisors (see below), whose sum is σ = 247719760992. Its totient is φ = 21397276224.

The previous prime is 74890475837. The next prime is 74890475909. The reversal of 74890475856 is 65857409847.

74890475856 is a `hidden beast` number, since 7 + 4 + 8 + 9 + 0 + 47 + 585 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 74890475793 and 74890475802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4118490 + ... + 4136633.

Almost surely, 2^74890475856 is an apocalyptic number.

It is an amenable number.

74890475856 is an abundant number, since it is smaller than the sum of its proper divisors (172829285136).

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

74890475856 is a wasteful number, since it uses less digits than its factorization.

74890475856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255150 (or 8255135 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 74890475856 in words is "seventy-four billion, eight hundred ninety million, four hundred seventy-five thousand, eight hundred fifty-six".