877149941778 has 48 divisors (see below), whose sum is σ = 2073367984896. Its totient is φ = 265789617120.

The previous prime is 877149941737. The next prime is 877149941813.

877149941778 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×877149941778² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4257951 + ... + 4459197.

It is an arithmetic number, because the mean of its divisors is an integer number (43195166352).

Almost surely, 2^877149941778 is an apocalyptic number.

877149941778 is an abundant number, since it is smaller than the sum of its proper divisors (1196218043118).

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

877149941778 is a wasteful number, since it uses less digits than its factorization.

877149941778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223279 (or 223276 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 72.

The spelling of 877149941778 in words is "eight hundred seventy-seven billion, one hundred forty-nine million, nine hundred forty-one thousand, seven hundred seventy-eight".