872355949553278 has 16 divisors (see below), whose sum is σ = 1328337490441104. Its totient is φ = 429579464592960.

The previous prime is 872355949553167. The next prime is 872355949553287.

872355949553278 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×872355949553278² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668976175 + ... + 670278922.

It is an arithmetic number, because the mean of its divisors is an integer number (83021093152569).

Almost surely, 2^{872355949553278} is an apocalyptic number.

872355949553278 is a deficient number, since it is larger than the sum of its proper divisors (455981540887826).

872355949553278 is a wasteful number, since it uses less digits than its factorization.

872355949553278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339260027.

The product of its digits is 22861440000, while the sum is 82.

The spelling of 872355949553278 in words is "eight hundred seventy-two trillion, three hundred fifty-five billion, nine hundred forty-nine million, five hundred fifty-three thousand, two hundred seventy-eight".