272572518861 has 12 divisors (see below), whose sum is σ = 393957870592. Its totient is φ = 181603315656.

The previous prime is 272572518853. The next prime is 272572518919. The reversal of 272572518861 is 168815275272.

It is a happy number.

272572518861 is a `hidden beast` number, since 2 + 7 + 2 + 572 + 5 + 1 + 8 + 8 + 61 = 666.

It is not a de Polignac number, because 272572518861 - 2³ = 272572518853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 272572518798 and 272572518807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272572518461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9292621 + ... + 9321906.

Almost surely, 2^272572518861 is an apocalyptic number.

It is an amenable number.

272572518861 is a deficient number, since it is larger than the sum of its proper divisors (121385351731).

272572518861 is a wasteful number, since it uses less digits than its factorization.

272572518861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18616160 (or 18616157 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 54.

The spelling of 272572518861 in words is "two hundred seventy-two billion, five hundred seventy-two million, five hundred eighteen thousand, eight hundred sixty-one".