12777137296 has 135 divisors (see below), whose sum is σ = 31739880627. Its totient is φ = 4964541120.

The previous prime is 12777137257. The next prime is 12777137323. The reversal of 12777137296 is 69273177721.

The square root of 12777137296 is 113036.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34814905 + ... + 34815271.

Almost surely, 2^12777137296 is an apocalyptic number.

12777137296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12777137296 is the 113036-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12777137296

12777137296 is an abundant number, since it is smaller than the sum of its proper divisors (18962743331).

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

12777137296 is an equidigital number, since it uses as much as digits as its factorization.

12777137296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 387 counting only the distinct ones).

The product of its digits is 1555848, while the sum is 52.

The spelling of 12777137296 in words is "twelve billion, seven hundred seventy-seven million, one hundred thirty-seven thousand, two hundred ninety-six".