126832565457 has 72 divisors (see below), whose sum is σ = 199819347000. Its totient is φ = 77486782464.

The previous prime is 126832565429. The next prime is 126832565459. The reversal of 126832565457 is 754565238621.

126832565457 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 32 + 565 + 45 + 7 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 88294556736 + 38538008721 = 297144^2 + 196311^2 .

It is not a de Polignac number, because 126832565457 - 2¹¹ = 126832563409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126832565459) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 178889019 + ... + 178889727.

Almost surely, 2^126832565457 is an apocalyptic number.

It is an amenable number.

126832565457 is a deficient number, since it is larger than the sum of its proper divisors (72986781543).

126832565457 is a wasteful number, since it uses less digits than its factorization.

126832565457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1411 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 126832565457 in words is "one hundred twenty-six billion, eight hundred thirty-two million, five hundred sixty-five thousand, four hundred fifty-seven".