13995890997 has 16 divisors (see below), whose sum is σ = 20371875840. Its totient is φ = 8476434800.

The previous prime is 13995890981. The next prime is 13995891001. The reversal of 13995890997 is 79909859931.

It is a cyclic number.

It is not a de Polignac number, because 13995890997 - 2⁴ = 13995890981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13995890927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99879 + ... + 194852.

It is an arithmetic number, because the mean of its divisors is an integer number (1273242240).

Almost surely, 2^13995890997 is an apocalyptic number.

It is an amenable number.

13995890997 is a deficient number, since it is larger than the sum of its proper divisors (6375984843).

13995890997 is a wasteful number, since it uses less digits than its factorization.

13995890997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296184.

The product of its (nonzero) digits is 49601160, while the sum is 69.

The spelling of 13995890997 in words is "thirteen billion, nine hundred ninety-five million, eight hundred ninety thousand, nine hundred ninety-seven".