13989430690908 has 24 divisors (see below), whose sum is σ = 34061222552448. Its totient is φ = 4460398191216.

The previous prime is 13989430690889. The next prime is 13989430690957. The reversal of 13989430690908 is 80909603498931.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25343171266 + ... + 25343171817.

It is an arithmetic number, because the mean of its divisors is an integer number (1419217606352).

Almost surely, 2^{13989430690908} is an apocalyptic number.

It is an amenable number.

13989430690908 is an abundant number, since it is smaller than the sum of its proper divisors (20071791861540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13989430690908 is a wasteful number, since it uses less digits than its factorization.

13989430690908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50686343113 (or 50686343111 counting only the distinct ones).

The product of its (nonzero) digits is 90699264, while the sum is 69.

The spelling of 13989430690908 in words is "thirteen trillion, nine hundred eighty-nine billion, four hundred thirty million, six hundred ninety thousand, nine hundred eight".