12777364338 has 32 divisors (see below), whose sum is σ = 26403656832. Its totient is φ = 4119897600.

The previous prime is 12777364307. The next prime is 12777364349. The reversal of 12777364338 is 83346377721.

It is a super-2 number, since 2×12777364338² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260383 + ... + 305538.

It is an arithmetic number, because the mean of its divisors is an integer number (825114276).

Almost surely, 2^12777364338 is an apocalyptic number.

12777364338 is an abundant number, since it is smaller than the sum of its proper divisors (13626292494).

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

12777364338 is a wasteful number, since it uses less digits than its factorization.

12777364338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566050.

The product of its digits is 3556224, while the sum is 51.

The spelling of 12777364338 in words is "twelve billion, seven hundred seventy-seven million, three hundred sixty-four thousand, three hundred thirty-eight".