12957722405 has 16 divisors (see below), whose sum is σ = 17179755264. Its totient is φ = 9332209920.

The previous prime is 12957722389. The next prime is 12957722411. The reversal of 12957722405 is 50422775921.

It is not a de Polignac number, because 12957722405 - 2⁴ = 12957722389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3312041 + ... + 3315950.

It is an arithmetic number, because the mean of its divisors is an integer number (1073734704).

Almost surely, 2^12957722405 is an apocalyptic number.

It is an amenable number.

12957722405 is a deficient number, since it is larger than the sum of its proper divisors (4222032859).

12957722405 is a wasteful number, since it uses less digits than its factorization.

12957722405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628036.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 12957722405 in words is "twelve billion, nine hundred fifty-seven million, seven hundred twenty-two thousand, four hundred five".