72150007858 has 8 divisors (see below), whose sum is σ = 109340733852. Its totient is φ = 35703096576.

The previous prime is 72150007847. The next prime is 72150007871. The reversal of 72150007858 is 85870005127.

It can be written as a sum of positive squares in 2 ways, for example, as 70962033769 + 1187974089 = 266387^2 + 34467^2 .

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

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, 185953435 + ... + 185953822.

Almost surely, 2^72150007858 is an apocalyptic number.

72150007858 is a deficient number, since it is larger than the sum of its proper divisors (37190725994).

72150007858 is a wasteful number, since it uses less digits than its factorization.

72150007858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371907356.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 72150007858 in words is "seventy-two billion, one hundred fifty million, seven thousand, eight hundred fifty-eight".