13930478992 has 20 divisors (see below), whose sum is σ = 26992404940. Its totient is φ = 6964697088.

The previous prime is 13930478987. The next prime is 13930479001. The reversal of 13930478992 is 29987403931.

13930478992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6513135616 + 7417343376 = 80704^2 + 86124^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250048 + ... + 300640.

It is an arithmetic number, because the mean of its divisors is an integer number (1349620247).

Almost surely, 2^13930478992 is an apocalyptic number.

It is an amenable number.

13930478992 is a deficient number, since it is larger than the sum of its proper divisors (13061925948).

13930478992 is a wasteful number, since it uses less digits than its factorization.

13930478992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67810 (or 67804 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 13930478992 in words is "thirteen billion, nine hundred thirty million, four hundred seventy-eight thousand, nine hundred ninety-two".