13993156898 has 128 divisors (see below), whose sum is σ = 27537408000. Its totient is φ = 5193745920.

The previous prime is 13993156871. The next prime is 13993156973. The reversal of 13993156898 is 89865139931.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 13993156898.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16879148 + ... + 16879976.

It is an arithmetic number, because the mean of its divisors is an integer number (215136000).

Almost surely, 2^13993156898 is an apocalyptic number.

13993156898 is a deficient number, since it is larger than the sum of its proper divisors (13544251102).

13993156898 is a wasteful number, since it uses less digits than its factorization.

13993156898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its digits is 12597120, while the sum is 62.

The spelling of 13993156898 in words is "thirteen billion, nine hundred ninety-three million, one hundred fifty-six thousand, eight hundred ninety-eight".