72708671500 has 24 divisors (see below), whose sum is σ = 158795739648. Its totient is φ = 29083468400.

The previous prime is 72708671479. The next prime is 72708671513. The reversal of 72708671500 is 517680727.

It is a super-2 number, since 2×72708671500² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72708172 + ... + 72709171.

It is an arithmetic number, because the mean of its divisors is an integer number (6616489152).

Almost surely, 2^72708671500 is an apocalyptic number.

It is an amenable number.

72708671500 is an abundant number, since it is smaller than the sum of its proper divisors (86087068148).

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

72708671500 is a wasteful number, since it uses less digits than its factorization.

72708671500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145417362 (or 145417350 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 72708671500 in words is "seventy-two billion, seven hundred eight million, six hundred seventy-one thousand, five hundred".