12772488345 has 16 divisors (see below), whose sum is σ = 20665601280. Its totient is φ = 6735453824.

The previous prime is 12772488307. The next prime is 12772488349. The reversal of 12772488345 is 54388427721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12772488345 - 2²⁵ = 12738933913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12772488349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4782369 + ... + 4785038.

It is an arithmetic number, because the mean of its divisors is an integer number (1291600080).

Almost surely, 2^12772488345 is an apocalyptic number.

12772488345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12772488345 is a deficient number, since it is larger than the sum of its proper divisors (7893112935).

12772488345 is an equidigital number, since it uses as much as digits as its factorization.

12772488345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9567504.

The product of its digits is 3010560, while the sum is 51.

The spelling of 12772488345 in words is "twelve billion, seven hundred seventy-two million, four hundred eighty-eight thousand, three hundred forty-five".