74814442816 has 28 divisors (see below), whose sum is σ = 152472344788. Its totient is φ = 36396214272.

The previous prime is 74814442793. The next prime is 74814442823. The reversal of 74814442816 is 61824441847.

It can be written as a sum of positive squares in 2 ways, for example, as 45334926400 + 29479516416 = 212920^2 + 171696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74814442816.

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, 15794601 + ... + 15799336.

Almost surely, 2^74814442816 is an apocalyptic number.

It is an amenable number.

74814442816 is an abundant number, since it is smaller than the sum of its proper divisors (77657901972).

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

74814442816 is a wasteful number, since it uses less digits than its factorization.

74814442816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31593986 (or 31593976 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 49.

The spelling of 74814442816 in words is "seventy-four billion, eight hundred fourteen million, four hundred forty-two thousand, eight hundred sixteen".