72451268592 has 40 divisors (see below), whose sum is σ = 191730801360. Its totient is φ = 23561387520.

The previous prime is 72451268573. The next prime is 72451268609. The reversal of 72451268592 is 29586215427.

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, 18405367 + ... + 18409302.

It is an arithmetic number, because the mean of its divisors is an integer number (4793270034).

Almost surely, 2^72451268592 is an apocalyptic number.

It is an amenable number.

72451268592 is an abundant number, since it is smaller than the sum of its proper divisors (119279532768).

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

72451268592 is a wasteful number, since it uses less digits than its factorization.

72451268592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36814721 (or 36814715 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 72451268592 in words is "seventy-two billion, four hundred fifty-one million, two hundred sixty-eight thousand, five hundred ninety-two".