72752696432 has 60 divisors (see below), whose sum is σ = 154567919520. Its totient is φ = 33153030144.

The previous prime is 72752696431. The next prime is 72752696437. The reversal of 72752696432 is 23469625727.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72752696431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43328 + ... + 383904.

It is an arithmetic number, because the mean of its divisors is an integer number (2576131992).

Almost surely, 2^72752696432 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 72752696432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77283959760).

72752696432 is an abundant number, since it is smaller than the sum of its proper divisors (81815223088).

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

72752696432 is a wasteful number, since it uses less digits than its factorization.

72752696432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340690 (or 340671 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 53.

The spelling of 72752696432 in words is "seventy-two billion, seven hundred fifty-two million, six hundred ninety-six thousand, four hundred thirty-two".