74813463920 has 80 divisors (see below), whose sum is σ = 188034340032. Its totient is φ = 27518300160.

The previous prime is 74813463919. The next prime is 74813463943. The reversal of 74813463920 is 2936431847.

It is a tau number, because it is divible by the number of its divisors (80).

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, 136760 + ... + 410280.

Almost surely, 2^74813463920 is an apocalyptic number.

It is a pronic number, being equal to 273520×273521.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74813463920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94017170016).

74813463920 is an abundant number, since it is smaller than the sum of its proper divisors (113220876112).

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

74813463920 is a wasteful number, since it uses less digits than its factorization.

74813463920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273810 (or 273804 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 74813463920 in words is "seventy-four billion, eight hundred thirteen million, four hundred sixty-three thousand, nine hundred twenty".