13253440626 has 48 divisors (see below), whose sum is σ = 30508896600. Its totient is φ = 4150185984.

The previous prime is 13253440621. The next prime is 13253440657. The reversal of 13253440626 is 62604435231.

13253440626 is a `hidden beast` number, since 1 + 3 + 25 + 3 + 4 + 4 + 0 + 626 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12679886025 + 573554601 = 112605^2 + 23949^2 .

It is not an unprimeable number, because it can be changed into a prime (13253440621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323791 + ... + 362418.

Almost surely, 2^13253440626 is an apocalyptic number.

13253440626 is an abundant number, since it is smaller than the sum of its proper divisors (17255455974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13253440626 is a wasteful number, since it uses less digits than its factorization.

13253440626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686283 (or 686280 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 13253440626 its reverse (62604435231), we get a palindrome (75857875857).

The spelling of 13253440626 in words is "thirteen billion, two hundred fifty-three million, four hundred forty thousand, six hundred twenty-six".