72587859880 has 16 divisors (see below), whose sum is σ = 163322684820. Its totient is φ = 29035143936.

The previous prime is 72587859871. The next prime is 72587859881. The reversal of 72587859880 is 8895878527.

It can be written as a sum of positive squares in 2 ways, for example, as 67393198404 + 5194661476 = 259602^2 + 72074^2 .

It is a super-2 number, since 2×72587859880² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72587859881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907348209 + ... + 907348288.

Almost surely, 2^72587859880 is an apocalyptic number.

It is an amenable number.

72587859880 is an abundant number, since it is smaller than the sum of its proper divisors (90734824940).

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

72587859880 is a wasteful number, since it uses less digits than its factorization.

72587859880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814696508 (or 1814696504 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 67.

The spelling of 72587859880 in words is "seventy-two billion, five hundred eighty-seven million, eight hundred fifty-nine thousand, eight hundred eighty".