13809391862 has 16 divisors (see below), whose sum is σ = 24919203840. Its totient is φ = 5606820648.

The previous prime is 13809391847. The next prime is 13809391931. The reversal of 13809391862 is 26819390831.

It is a self number, because there is not a number n which added to its sum of digits gives 13809391862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25957238 + ... + 25957769.

It is an arithmetic number, because the mean of its divisors is an integer number (1557450240).

Almost surely, 2^13809391862 is an apocalyptic number.

13809391862 is a deficient number, since it is larger than the sum of its proper divisors (11109811978).

13809391862 is a wasteful number, since it uses less digits than its factorization.

13809391862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51915035.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 13809391862 in words is "thirteen billion, eight hundred nine million, three hundred ninety-one thousand, eight hundred sixty-two".