13959939950 has 24 divisors (see below), whose sum is σ = 28325988360. Its totient is φ = 5076341600.

The previous prime is 13959939941. The next prime is 13959940009. The reversal of 13959939950 is 5993995931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12690305 + ... + 12691404.

It is an arithmetic number, because the mean of its divisors is an integer number (1180249515).

Almost surely, 2^13959939950 is an apocalyptic number.

13959939950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13959939950 is an abundant number, since it is smaller than the sum of its proper divisors (14366048410).

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

13959939950 is a wasteful number, since it uses less digits than its factorization.

13959939950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25381732 (or 25381727 counting only the distinct ones).

The product of its (nonzero) digits is 13286025, while the sum is 62.

The spelling of 13959939950 in words is "thirteen billion, nine hundred fifty-nine million, nine hundred thirty-nine thousand, nine hundred fifty".