13831941988 has 12 divisors (see below), whose sum is σ = 24216582460. Its totient is φ = 6912918432.

The previous prime is 13831941979. The next prime is 13831942013. The reversal of 13831941988 is 88914913831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4964329764 + 8867612224 = 70458^2 + 94168^2 .

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, 752931 + ... + 771082.

Almost surely, 2^13831941988 is an apocalyptic number.

It is an amenable number.

13831941988 is a deficient number, since it is larger than the sum of its proper divisors (10384640472).

13831941988 is a wasteful number, since it uses less digits than its factorization.

13831941988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526286 (or 1526284 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 55.

The spelling of 13831941988 in words is "thirteen billion, eight hundred thirty-one million, nine hundred forty-one thousand, nine hundred eighty-eight".