72530162187 has 16 divisors (see below), whose sum is σ = 110587257600. Its totient is φ = 41421392352.

The previous prime is 72530162147. The next prime is 72530162203. The reversal of 72530162187 is 78126103527.

It is not a de Polignac number, because 72530162187 - 2⁸ = 72530161931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72530162137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980748 + ... + 1052105.

It is an arithmetic number, because the mean of its divisors is an integer number (6911703600).

Almost surely, 2^72530162187 is an apocalyptic number.

72530162187 is a deficient number, since it is larger than the sum of its proper divisors (38057095413).

72530162187 is a wasteful number, since it uses less digits than its factorization.

72530162187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034562.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 72530162187 in words is "seventy-two billion, five hundred thirty million, one hundred sixty-two thousand, one hundred eighty-seven".