12777576097 has 32 divisors (see below), whose sum is σ = 15445019520. Its totient is φ = 10417144320.

The previous prime is 12777576079. The next prime is 12777576139. The reversal of 12777576097 is 79067577721.

It is a happy number.

It is not a de Polignac number, because 12777576097 - 2¹¹ = 12777574049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12777571097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690279 + ... + 708547.

It is an arithmetic number, because the mean of its divisors is an integer number (482656860).

Almost surely, 2^12777576097 is an apocalyptic number.

It is an amenable number.

12777576097 is a deficient number, since it is larger than the sum of its proper divisors (2667443423).

12777576097 is a wasteful number, since it uses less digits than its factorization.

12777576097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18433.

The product of its (nonzero) digits is 9075780, while the sum is 58.

The spelling of 12777576097 in words is "twelve billion, seven hundred seventy-seven million, five hundred seventy-six thousand, ninety-seven".