74942036816 has 20 divisors (see below), whose sum is σ = 146244806400. Its totient is φ = 37201441632.

The previous prime is 74942036759. The next prime is 74942036831. The reversal of 74942036816 is 61863024947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16846256 + ... + 16850703.

It is an arithmetic number, because the mean of its divisors is an integer number (7312240320).

Almost surely, 2^74942036816 is an apocalyptic number.

It is an amenable number.

74942036816 is a deficient number, since it is larger than the sum of its proper divisors (71302769584).

74942036816 is a wasteful number, since it uses less digits than its factorization.

74942036816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33697106 (or 33697100 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 74942036816 in words is "seventy-four billion, nine hundred forty-two million, thirty-six thousand, eight hundred sixteen".