74574123012 has 24 divisors (see below), whose sum is σ = 193340319200. Its totient is φ = 24858040968.

The previous prime is 74574123011. The next prime is 74574123037. The reversal of 74574123012 is 21032147547.

74574123012 is a `hidden beast` number, since 74 + 574 + 1 + 2 + 3 + 0 + 12 = 666.

It is a super-2 number, since 2×74574123012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74574123011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345250462 + ... + 345250677.

Almost surely, 2^74574123012 is an apocalyptic number.

It is an amenable number.

74574123012 is an abundant number, since it is smaller than the sum of its proper divisors (118766196188).

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

74574123012 is a wasteful number, since it uses less digits than its factorization.

74574123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690501152 (or 690501144 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 74574123012 in words is "seventy-four billion, five hundred seventy-four million, one hundred twenty-three thousand, twelve".