13999859041 has 9 divisors (see below), whose sum is σ = 16286513841. Its totient is φ = 11999169252.

The previous prime is 13999859033. The next prime is 13999859047. The reversal of 13999859041 is 14095899931.

It is a happy number.

The square root of 13999859041 is 118321.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13999859041 - 2³ = 13999859033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13999859047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 819796 + ... + 836698.

It is an arithmetic number, because the mean of its divisors is an integer number (1809612649).

Almost surely, 2^13999859041 is an apocalyptic number.

13999859041 is the 118321-st square number.

13999859041 is the 59161-st centered octagonal number.

It is an amenable number.

13999859041 is a deficient number, since it is larger than the sum of its proper divisors (2286654800).

13999859041 is an frugal number, since it uses more digits than its factorization.

13999859041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33820 (or 16910 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 58.

The spelling of 13999859041 in words is "thirteen billion, nine hundred ninety-nine million, eight hundred fifty-nine thousand, forty-one".