13919129850 has 24 divisors (see below), whose sum is σ = 34519442400. Its totient is φ = 3711767920.

The previous prime is 13919129837. The next prime is 13919129881. The reversal of 13919129850 is 5892191931.

It is a super-2 number, since 2×13919129850² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13919129850.

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, 46396950 + ... + 46397249.

It is an arithmetic number, because the mean of its divisors is an integer number (1438310100).

Almost surely, 2^13919129850 is an apocalyptic number.

13919129850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13919129850 is an abundant number, since it is smaller than the sum of its proper divisors (20600312550).

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

13919129850 is a wasteful number, since it uses less digits than its factorization.

13919129850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92794214 (or 92794209 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 48.

The spelling of 13919129850 in words is "thirteen billion, nine hundred nineteen million, one hundred twenty-nine thousand, eight hundred fifty".