872736818951 has 4 divisors (see below), whose sum is σ = 872910641304. Its totient is φ = 872562996600.

The previous prime is 872736818927. The next prime is 872736818959. The reversal of 872736818951 is 159818637278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159818637278 = 2 ⋅79909318639.

It is a cyclic number.

It is not a de Polignac number, because 872736818951 - 2³⁰ = 871663077127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872736818959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86903645 + ... + 86913686.

It is an arithmetic number, because the mean of its divisors is an integer number (218227660326).

Almost surely, 2^872736818951 is an apocalyptic number.

872736818951 is a deficient number, since it is larger than the sum of its proper divisors (173822353).

872736818951 is a wasteful number, since it uses less digits than its factorization.

872736818951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173822352.

The product of its digits is 40642560, while the sum is 65.

The spelling of 872736818951 in words is "eight hundred seventy-two billion, seven hundred thirty-six million, eight hundred eighteen thousand, nine hundred fifty-one".