13889709028 has 96 divisors (see below), whose sum is σ = 27396246528. Its totient is φ = 6120576000.

The previous prime is 13889709013. The next prime is 13889709049. The reversal of 13889709028 is 82090798831.

It is a self number, because there is not a number n which added to its sum of digits gives 13889709028.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22511376 + ... + 22511992.

It is an arithmetic number, because the mean of its divisors is an integer number (285377568).

Almost surely, 2^13889709028 is an apocalyptic number.

It is an amenable number.

13889709028 is a deficient number, since it is larger than the sum of its proper divisors (13506537500).

13889709028 is a wasteful number, since it uses less digits than its factorization.

13889709028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 13889709028 in words is "thirteen billion, eight hundred eighty-nine million, seven hundred nine thousand, twenty-eight".