74695481856 has 320 divisors, whose sum is σ = 226243079040. Its totient is φ = 24325816320.

The previous prime is 74695481803. The next prime is 74695481879. The reversal of 74695481856 is 65818459647.

74695481856 is a `hidden beast` number, since 7 + 4 + 6 + 9 + 548 + 1 + 85 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 74695481793 and 74695481802.

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, 238643556 + ... + 238643868.

It is an arithmetic number, because the mean of its divisors is an integer number (707009622).

Almost surely, 2^74695481856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74695481856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113121539520).

74695481856 is an abundant number, since it is smaller than the sum of its proper divisors (151547597184).

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

74695481856 is a wasteful number, since it uses less digits than its factorization.

74695481856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 662 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 74695481856 in words is "seventy-four billion, six hundred ninety-five million, four hundred eighty-one thousand, eight hundred fifty-six".