78652138032 has 480 divisors, whose sum is σ = 249340291200. Its totient is φ = 22992076800.

The previous prime is 78652138021. The next prime is 78652138051. The reversal of 78652138032 is 23083125687.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 721579194 + ... + 721579302.

It is an arithmetic number, because the mean of its divisors is an integer number (519458940).

Almost surely, 2^78652138032 is an apocalyptic number.

78652138032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78652138032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124670145600).

78652138032 is an abundant number, since it is smaller than the sum of its proper divisors (170688153168).

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

78652138032 is a wasteful number, since it uses less digits than its factorization.

78652138032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 78652138032 in words is "seventy-eight billion, six hundred fifty-two million, one hundred thirty-eight thousand, thirty-two".