12736454451 has 32 divisors (see below), whose sum is σ = 20607022080. Its totient is φ = 6830708736.

The previous prime is 12736454413. The next prime is 12736454459. The reversal of 12736454451 is 15445463721.

It is not a de Polignac number, because 12736454451 - 2⁶ = 12736454387 is a prime.

It is a super-2 number, since 2×12736454451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12736454459) 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, 78475 + ... + 177851.

It is an arithmetic number, because the mean of its divisors is an integer number (643969440).

Almost surely, 2^12736454451 is an apocalyptic number.

12736454451 is a deficient number, since it is larger than the sum of its proper divisors (7870567629).

12736454451 is a wasteful number, since it uses less digits than its factorization.

12736454451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99763.

The product of its digits is 403200, while the sum is 42.

The spelling of 12736454451 in words is "twelve billion, seven hundred thirty-six million, four hundred fifty-four thousand, four hundred fifty-one".