13040502634 has 4 divisors (see below), whose sum is σ = 19560753954. Its totient is φ = 6520251316.

The previous prime is 13040502623. The next prime is 13040502649. The reversal of 13040502634 is 43620504031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8957676025 + 4082826609 = 94645^2 + 63897^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260125657 + ... + 3260125660.

Almost surely, 2^13040502634 is an apocalyptic number.

13040502634 is a deficient number, since it is larger than the sum of its proper divisors (6520251320).

13040502634 is an equidigital number, since it uses as much as digits as its factorization.

13040502634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520251319.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 13040502634 in words is "thirteen billion, forty million, five hundred two thousand, six hundred thirty-four".