72808765580 has 12 divisors (see below), whose sum is σ = 152898407760. Its totient is φ = 29123506224.

The previous prime is 72808765577. The next prime is 72808765597. The reversal of 72808765580 is 8556780827.

It is a super-2 number, since 2×72808765580² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820219120 + ... + 1820219159.

It is an arithmetic number, because the mean of its divisors is an integer number (12741533980).

Almost surely, 2^72808765580 is an apocalyptic number.

It is an amenable number.

72808765580 is an abundant number, since it is smaller than the sum of its proper divisors (80089642180).

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

72808765580 is a wasteful number, since it uses less digits than its factorization.

72808765580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640438288 (or 3640438286 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 72808765580 in words is "seventy-two billion, eight hundred eight million, seven hundred sixty-five thousand, five hundred eighty".