13811898772 has 12 divisors (see below), whose sum is σ = 27623797600. Its totient is φ = 5919385176.

The previous prime is 13811898767. The next prime is 13811898787. The reversal of 13811898772 is 27789811831.

13811898772 is an admirable number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246641022 + ... + 246641077.

Almost surely, 2^13811898772 is an apocalyptic number.

It is an amenable number.

13811898772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13811898772 is a wasteful number, since it uses less digits than its factorization.

13811898772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493282110 (or 493282108 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 55.

The spelling of 13811898772 in words is "thirteen billion, eight hundred eleven million, eight hundred ninety-eight thousand, seven hundred seventy-two".