74978613140 has 48 divisors (see below), whose sum is σ = 162618516480. Its totient is φ = 29008938240.

The previous prime is 74978613133. The next prime is 74978613167. The reversal of 74978613140 is 4131687947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205321 + ... + 1265999.

It is an arithmetic number, because the mean of its divisors is an integer number (3387885760).

Almost surely, 2^74978613140 is an apocalyptic number.

It is an amenable number.

74978613140 is an abundant number, since it is smaller than the sum of its proper divisors (87639903340).

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

74978613140 is a wasteful number, since it uses less digits than its factorization.

74978613140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62712 (or 62710 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 74978613140 in words is "seventy-four billion, nine hundred seventy-eight million, six hundred thirteen thousand, one hundred forty".