72424832880 has 80 divisors (see below), whose sum is σ = 224615936160. Its totient is φ = 19304776704.

The previous prime is 72424832849. The next prime is 72424832891. The reversal of 72424832880 is 8823842427.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488814 + ... + 619506.

It is an arithmetic number, because the mean of its divisors is an integer number (2807699202).

Almost surely, 2^72424832880 is an apocalyptic number.

It is an amenable number.

72424832880 is an abundant number, since it is smaller than the sum of its proper divisors (152191103280).

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

72424832880 is a wasteful number, since it uses less digits than its factorization.

72424832880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133018 (or 133012 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 48.

The spelling of 72424832880 in words is "seventy-two billion, four hundred twenty-four million, eight hundred thirty-two thousand, eight hundred eighty".