13399209772 has 12 divisors (see below), whose sum is σ = 25252356976. Its totient is φ = 6184250640.

The previous prime is 13399209749. The next prime is 13399209779. The reversal of 13399209772 is 27790299331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 257677111 = 13399209772 / (1 + 3 + 3 + 9 + 9 + 2 + 0 + 9 + 7 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (13399209779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128838504 + ... + 128838607.

Almost surely, 2^13399209772 is an apocalyptic number.

It is an amenable number.

13399209772 is a deficient number, since it is larger than the sum of its proper divisors (11853147204).

13399209772 is a wasteful number, since it uses less digits than its factorization.

13399209772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257677128 (or 257677126 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 52.

The spelling of 13399209772 in words is "thirteen billion, three hundred ninety-nine million, two hundred nine thousand, seven hundred seventy-two".