13994039012 has 6 divisors (see below), whose sum is σ = 24489568278. Its totient is φ = 6997019504.

The previous prime is 13994039009. The next prime is 13994039021. The reversal of 13994039012 is 21093049931.

It can be written as a sum of positive squares in only one way, i.e., 10554685696 + 3439353316 = 102736^2 + 58646^2 .

It is a super-2 number, since 2×13994039012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749254873 + ... + 1749254880.

It is an arithmetic number, because the mean of its divisors is an integer number (4081594713).

Almost surely, 2^13994039012 is an apocalyptic number.

It is an amenable number.

13994039012 is a deficient number, since it is larger than the sum of its proper divisors (10495529266).

13994039012 is a wasteful number, since it uses less digits than its factorization.

13994039012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498509757 (or 3498509755 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 13994039012 in words is "thirteen billion, nine hundred ninety-four million, thirty-nine thousand, twelve".