74647912312 has 8 divisors (see below), whose sum is σ = 139964835600. Its totient is φ = 37323956152.

The previous prime is 74647912303. The next prime is 74647912333. The reversal of 74647912312 is 21321974647.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4665494512 + ... + 4665494527.

It is an arithmetic number, because the mean of its divisors is an integer number (17495604450).

Almost surely, 2^74647912312 is an apocalyptic number.

It is an amenable number.

74647912312 is a deficient number, since it is larger than the sum of its proper divisors (65316923288).

74647912312 is a wasteful number, since it uses less digits than its factorization.

74647912312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330989045 (or 9330989041 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The spelling of 74647912312 in words is "seventy-four billion, six hundred forty-seven million, nine hundred twelve thousand, three hundred twelve".