14147989920 has 144 divisors (see below), whose sum is σ = 48891548160. Its totient is φ = 3725010432.

The previous prime is 14147989907. The next prime is 14147989949. The reversal of 14147989920 is 2998974141.

14147989920 is a `hidden beast` number, since 1 + 4 + 1 + 479 + 89 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51577 + ... + 175943.

It is an arithmetic number, because the mean of its divisors is an integer number (339524640).

Almost surely, 2^14147989920 is an apocalyptic number.

14147989920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14147989920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24445774080).

14147989920 is an abundant number, since it is smaller than the sum of its proper divisors (34743558240).

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

14147989920 is a wasteful number, since it uses less digits than its factorization.

14147989920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124467 (or 124456 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 14147989920 in words is "fourteen billion, one hundred forty-seven million, nine hundred eighty-nine thousand, nine hundred twenty".