12709510951 has 4 divisors (see below), whose sum is σ = 13378432600. Its totient is φ = 12040589304.

The previous prime is 12709510927. The next prime is 12709510973. The reversal of 12709510951 is 15901590721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12709510951 - 2²⁵ = 12675956519 is a prime.

It is a super-2 number, since 2×12709510951² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12709510921) 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, 334460796 + ... + 334460833.

It is an arithmetic number, because the mean of its divisors is an integer number (3344608150).

Almost surely, 2^12709510951 is an apocalyptic number.

12709510951 is a deficient number, since it is larger than the sum of its proper divisors (668921649).

12709510951 is an equidigital number, since it uses as much as digits as its factorization.

12709510951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668921648.

The product of its (nonzero) digits is 28350, while the sum is 40.

The spelling of 12709510951 in words is "twelve billion, seven hundred nine million, five hundred ten thousand, nine hundred fifty-one".