13950809880 has 128 divisors (see below), whose sum is σ = 48505236480. Its totient is φ = 3143831040.

The previous prime is 13950809801. The next prime is 13950809893. The reversal of 13950809880 is 8890805931.

It is a super-2 number, since 2×13950809880² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 57319 + ... + 176598.

It is an arithmetic number, because the mean of its divisors is an integer number (378947160).

Almost surely, 2^13950809880 is an apocalyptic number.

13950809880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13950809880 is an abundant number, since it is smaller than the sum of its proper divisors (34554426600).

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

13950809880 is a wasteful number, since it uses less digits than its factorization.

13950809880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234009 (or 234005 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 13950809880 in words is "thirteen billion, nine hundred fifty million, eight hundred nine thousand, eight hundred eighty".