78452844032 has 160 divisors (see below), whose sum is σ = 164347454304. Its totient is φ = 37380096000.

The previous prime is 78452844031. The next prime is 78452844049. The reversal of 78452844032 is 23044825487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78452844031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250647908 + ... + 250648220.

Almost surely, 2^78452844032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78452844032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82173727152).

78452844032 is an abundant number, since it is smaller than the sum of its proper divisors (85894610272).

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

78452844032 is a wasteful number, since it uses less digits than its factorization.

78452844032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 78452844032 in words is "seventy-eight billion, four hundred fifty-two million, eight hundred forty-four thousand, thirty-two".