877838464838778 has 16 divisors (see below), whose sum is σ = 1755711882340416. Its totient is φ = 292606996169120.

The previous prime is 877838464838759. The next prime is 877838464838789.

877838464838778 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456034451 + ... + 1456637222.

It is an arithmetic number, because the mean of its divisors is an integer number (109731992646276).

Almost surely, 2^{877838464838778} is an apocalyptic number.

877838464838778 is an abundant number, since it is smaller than the sum of its proper divisors (877873417501638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

877838464838778 is a wasteful number, since it uses less digits than its factorization.

877838464838778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912721909.

The product of its digits is 543808290816, while the sum is 96.

The spelling of 877838464838778 in words is "eight hundred seventy-seven trillion, eight hundred thirty-eight billion, four hundred sixty-four million, eight hundred thirty-eight thousand, seven hundred seventy-eight".