74091836144 has 40 divisors (see below), whose sum is σ = 145503336000. Its totient is φ = 36545561856.

The previous prime is 74091836113. The next prime is 74091836153. The reversal of 74091836144 is 44163819047.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306617 + ... + 492135.

It is an arithmetic number, because the mean of its divisors is an integer number (3637583400).

Almost surely, 2^74091836144 is an apocalyptic number.

It is an amenable number.

74091836144 is a deficient number, since it is larger than the sum of its proper divisors (71411499856).

74091836144 is a wasteful number, since it uses less digits than its factorization.

74091836144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185865 (or 185859 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 74091836144 in words is "seventy-four billion, ninety-one million, eight hundred thirty-six thousand, one hundred forty-four".