72388796144 has 80 divisors (see below), whose sum is σ = 163789516800. Its totient is φ = 30347069952.

The previous prime is 72388796063. The next prime is 72388796147. The reversal of 72388796144 is 44169788327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72388796147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16416212 + ... + 16420620.

It is an arithmetic number, because the mean of its divisors is an integer number (2047368960).

Almost surely, 2^72388796144 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 72388796144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81894758400).

72388796144 is an abundant number, since it is smaller than the sum of its proper divisors (91400720656).

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

72388796144 is a wasteful number, since it uses less digits than its factorization.

72388796144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590 (or 7584 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The spelling of 72388796144 in words is "seventy-two billion, three hundred eighty-eight million, seven hundred ninety-six thousand, one hundred forty-four".