74894918612 has 12 divisors (see below), whose sum is σ = 134262842196. Its totient is φ = 36534106560.

The previous prime is 74894918587. The next prime is 74894918617. The reversal of 74894918612 is 21681949847.

It can be written as a sum of positive squares in 2 ways, for example, as 6184878736 + 68710039876 = 78644^2 + 262126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74894918617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228338003 + ... + 228338330.

It is an arithmetic number, because the mean of its divisors is an integer number (11188570183).

Almost surely, 2^74894918612 is an apocalyptic number.

It is an amenable number.

74894918612 is a deficient number, since it is larger than the sum of its proper divisors (59367923584).

74894918612 is a wasteful number, since it uses less digits than its factorization.

74894918612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456676378 (or 456676376 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 59.

The spelling of 74894918612 in words is "seventy-four billion, eight hundred ninety-four million, nine hundred eighteen thousand, six hundred twelve".