78520801232 has 40 divisors (see below), whose sum is σ = 157102301952. Its totient is φ = 37979251200.

The previous prime is 78520801223. The next prime is 78520801243. The reversal of 78520801232 is 23210802587.

It is a super-2 number, since 2×78520801232² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313432 + ... + 1371912.

Almost surely, 2^78520801232 is an apocalyptic number.

It is an amenable number.

78520801232 is an abundant number, since it is smaller than the sum of its proper divisors (78581500720).

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

78520801232 is a wasteful number, since it uses less digits than its factorization.

78520801232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61227 (or 61221 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 78520801232 in words is "seventy-eight billion, five hundred twenty million, eight hundred one thousand, two hundred thirty-two".