72572384438240 has 144 divisors (see below), whose sum is σ = 184801026457152. Its totient is φ = 26915983008768.

The previous prime is 72572384438179. The next prime is 72572384438249. The reversal of 72572384438240 is 4283448327527.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72572384438240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72572384438249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10651739 + ... + 16081178.

It is an arithmetic number, because the mean of its divisors is an integer number (1283340461508).

Almost surely, 2^{72572384438240} is an apocalyptic number.

It is an amenable number.

72572384438240 is an abundant number, since it is smaller than the sum of its proper divisors (112228642018912).

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

72572384438240 is a wasteful number, since it uses less digits than its factorization.

72572384438240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26733017 (or 26732990 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 59.

The spelling of 72572384438240 in words is "seventy-two trillion, five hundred seventy-two billion, three hundred eighty-four million, four hundred thirty-eight thousand, two hundred forty".