63540341256123 has 10 divisors (see below), whose sum is σ = 94918287555564. Its totient is φ = 42360227504028.

The previous prime is 63540341256011. The next prime is 63540341256157. The reversal of 63540341256123 is 32165214304536.

63540341256123 is a `hidden beast` number, since 6 + 3 + 5 + 4 + 0 + 3 + 4 + 1 + 25 + 612 + 3 = 666.

It is not a de Polignac number, because 63540341256123 - 2¹² = 63540341252027 is a prime.

It is a super-2 number, since 2×63540341256123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63540341255123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 392224328661 + ... + 392224328822.

Almost surely, 2^{63540341256123} is an apocalyptic number.

63540341256123 is a deficient number, since it is larger than the sum of its proper divisors (31377946299441).

63540341256123 is an equidigital number, since it uses as much as digits as its factorization.

63540341256123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784448657495 (or 784448657486 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 63540341256123 in words is "sixty-three trillion, five hundred forty billion, three hundred forty-one million, two hundred fifty-six thousand, one hundred twenty-three".