277057778994 has 16 divisors (see below), whose sum is σ = 615683953440. Its totient is φ = 92352592980.

The previous prime is 277057778989. The next prime is 277057779007. The reversal of 277057778994 is 499877750772.

It is a super-2 number, since 2×277057778994² (a number of 24 digits) contains 22 as substring.

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, 2565349752 + ... + 2565349859.

It is an arithmetic number, because the mean of its divisors is an integer number (38480247090).

Almost surely, 2^277057778994 is an apocalyptic number.

277057778994 is an abundant number, since it is smaller than the sum of its proper divisors (338626174446).

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

277057778994 is a wasteful number, since it uses less digits than its factorization.

277057778994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130699622 (or 5130699616 counting only the distinct ones).

The product of its (nonzero) digits is 435637440, while the sum is 72.

The spelling of 277057778994 in words is "two hundred seventy-seven billion, fifty-seven million, seven hundred seventy-eight thousand, nine hundred ninety-four".