126814215957 has 16 divisors (see below), whose sum is σ = 198646045248. Its totient is φ = 70945015680.

The previous prime is 126814215919. The next prime is 126814215977. The reversal of 126814215957 is 759512418621.

It is not a de Polignac number, because 126814215957 - 2²⁰ = 126813167381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126814215977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147801688 + ... + 147802545.

It is an arithmetic number, because the mean of its divisors is an integer number (12415377828).

Almost surely, 2^126814215957 is an apocalyptic number.

It is an amenable number.

126814215957 is a deficient number, since it is larger than the sum of its proper divisors (71831829291).

126814215957 is a wasteful number, since it uses less digits than its factorization.

126814215957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295604260.

The product of its digits is 1209600, while the sum is 51.

The spelling of 126814215957 in words is "one hundred twenty-six billion, eight hundred fourteen million, two hundred fifteen thousand, nine hundred fifty-seven".