78525032724 has 108 divisors (see below), whose sum is σ = 213528078400. Its totient is φ = 24323210496.

The previous prime is 78525032699. The next prime is 78525032731. The reversal of 78525032724 is 42723052587.

78525032724 is a `hidden beast` number, since 78 + 5 + 2 + 503 + 2 + 72 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 78525032724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 774147 + ... + 869685.

Almost surely, 2^78525032724 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 78525032724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106764039200).

78525032724 is an abundant number, since it is smaller than the sum of its proper divisors (135003045676).

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

78525032724 is a wasteful number, since it uses less digits than its factorization.

78525032724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95662 (or 95640 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 78525032724 in words is "seventy-eight billion, five hundred twenty-five million, thirty-two thousand, seven hundred twenty-four".