72440875584 has 896 divisors, whose sum is σ = 278562816000. Its totient is φ = 18289152000.

The previous prime is 72440875567. The next prime is 72440875621. The reversal of 72440875584 is 48557804427.

72440875584 is a `hidden beast` number, since 7 + 2 + 4 + 4 + 0 + 87 + 558 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 72440875584.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 267309369 + ... + 267309639.

It is an arithmetic number, because the mean of its divisors is an integer number (310896000).

Almost surely, 2^72440875584 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 72440875584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139281408000).

72440875584 is an abundant number, since it is smaller than the sum of its proper divisors (206121940416).

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

72440875584 is a wasteful number, since it uses less digits than its factorization.

72440875584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 54.

The spelling of 72440875584 in words is "seventy-two billion, four hundred forty million, eight hundred seventy-five thousand, five hundred eighty-four".