72871090189 has 12 divisors (see below), whose sum is σ = 77884730944. Its totient is φ = 68163747264.

The previous prime is 72871090139. The next prime is 72871090211. The reversal of 72871090189 is 98109017827.

It is not a de Polignac number, because 72871090189 - 2¹⁵ = 72871057421 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72871090139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726357 + ... + 820570.

Almost surely, 2^72871090189 is an apocalyptic number.

It is an amenable number.

72871090189 is a deficient number, since it is larger than the sum of its proper divisors (5013640755).

72871090189 is a wasteful number, since it uses less digits than its factorization.

72871090189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547124 (or 1547107 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 52.

The spelling of 72871090189 in words is "seventy-two billion, eight hundred seventy-one million, ninety thousand, one hundred eighty-nine".