12736454450 has 12 divisors (see below), whose sum is σ = 23689805370. Its totient is φ = 5094581760.

The previous prime is 12736454413. The next prime is 12736454459. The reversal of 12736454450 is 5445463721.

It can be written as a sum of positive squares in 3 ways, for example, as 5623050169 + 7113404281 = 74987^2 + 84341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12736454398 and 12736454407.

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 5 ways as a sum of consecutive naturals, for example, 127364495 + ... + 127364594.

Almost surely, 2^12736454450 is an apocalyptic number.

12736454450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12736454450 is a deficient number, since it is larger than the sum of its proper divisors (10953350920).

12736454450 is a wasteful number, since it uses less digits than its factorization.

12736454450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254729101 (or 254729096 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 12736454450 in words is "twelve billion, seven hundred thirty-six million, four hundred fifty-four thousand, four hundred fifty".