72487389686 has 8 divisors (see below), whose sum is σ = 108820431720. Its totient is φ = 36213912448.

The previous prime is 72487389671. The next prime is 72487389703. The reversal of 72487389686 is 68698378427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14888156 + ... + 14893023.

It is an arithmetic number, because the mean of its divisors is an integer number (13602553965).

Almost surely, 2^72487389686 is an apocalyptic number.

72487389686 is a deficient number, since it is larger than the sum of its proper divisors (36333042034).

72487389686 is a wasteful number, since it uses less digits than its factorization.

72487389686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29782398.

The product of its digits is 195084288, while the sum is 68.

The spelling of 72487389686 in words is "seventy-two billion, four hundred eighty-seven million, three hundred eighty-nine thousand, six hundred eighty-six".