12857507400423 has 32 divisors (see below), whose sum is σ = 19966122165760. Its totient is φ = 7207633964160.

The previous prime is 12857507400391. The next prime is 12857507400449. The reversal of 12857507400423 is 32400470575821.

It is a happy number.

It is not a de Polignac number, because 12857507400423 - 2⁵ = 12857507400391 is a prime.

It is a super-2 number, since 2×12857507400423² (a number of 27 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 (12857507400323) 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, 12756040 + ... + 13727037.

It is an arithmetic number, because the mean of its divisors is an integer number (623941317680).

Almost surely, 2^{12857507400423} is an apocalyptic number.

12857507400423 is a deficient number, since it is larger than the sum of its proper divisors (7108614765337).

12857507400423 is a wasteful number, since it uses less digits than its factorization.

12857507400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26483527.

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 12857507400423 in words is "twelve trillion, eight hundred fifty-seven billion, five hundred seven million, four hundred thousand, four hundred twenty-three".