12576638767 has 32 divisors (see below), whose sum is σ = 16218768384. Its totient is φ = 9467884800.

The previous prime is 12576638749. The next prime is 12576638807. The reversal of 12576638767 is 76783667521.

It is not a de Polignac number, because 12576638767 - 2⁷ = 12576638639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12576638467) 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, 305833 + ... + 344509.

It is an arithmetic number, because the mean of its divisors is an integer number (506836512).

Almost surely, 2^12576638767 is an apocalyptic number.

12576638767 is a deficient number, since it is larger than the sum of its proper divisors (3642129617).

12576638767 is a wasteful number, since it uses less digits than its factorization.

12576638767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38839.

The product of its digits is 17781120, while the sum is 58.

The spelling of 12576638767 in words is "twelve billion, five hundred seventy-six million, six hundred thirty-eight thousand, seven hundred sixty-seven".