13040269636 has 9 divisors (see below), whose sum is σ = 22820871549. Its totient is φ = 6520020624.

The previous prime is 13040269579. The next prime is 13040269651. The reversal of 13040269636 is 63696204031.

The square root of 13040269636 is 114194.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 283922500 + 12756347136 = 16850^2 + 112944^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 199840 + ... + 256936.

Almost surely, 2^13040269636 is an apocalyptic number.

13040269636 is the 114194-th square number.

It is an amenable number.

13040269636 is a deficient number, since it is larger than the sum of its proper divisors (9780601913).

13040269636 is an frugal number, since it uses more digits than its factorization.

13040269636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114198 (or 57099 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 13040269636 in words is "thirteen billion, forty million, two hundred sixty-nine thousand, six hundred thirty-six".