12772087813 has 4 divisors (see below), whose sum is σ = 12856671328. Its totient is φ = 12687504300.

The previous prime is 12772087759. The next prime is 12772087819. The reversal of 12772087813 is 31878027721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12772087813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772087819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42291531 + ... + 42291832.

It is an arithmetic number, because the mean of its divisors is an integer number (3214167832).

Almost surely, 2^12772087813 is an apocalyptic number.

It is an amenable number.

12772087813 is a deficient number, since it is larger than the sum of its proper divisors (84583515).

12772087813 is an equidigital number, since it uses as much as digits as its factorization.

12772087813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84583514.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 12772087813 in words is "twelve billion, seven hundred seventy-two million, eighty-seven thousand, eight hundred thirteen".