14268721920 has 72 divisors (see below), whose sum is σ = 45570742896. Its totient is φ = 3804991488.

The previous prime is 14268721913. The next prime is 14268721927. The reversal of 14268721920 is 2912786241.

It is an interprime number because it is at equal distance from previous prime (14268721913) and next prime (14268721927).

It is not an unprimeable number, because it can be changed into a prime (14268721927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854067 + ... + 1861746.

Almost surely, 2^14268721920 is an apocalyptic number.

14268721920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14268721920 is an abundant number, since it is smaller than the sum of its proper divisors (31302020976).

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

14268721920 is an equidigital number, since it uses as much as digits as its factorization.

14268721920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715837 (or 3715823 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 14268721920 in words is "fourteen billion, two hundred sixty-eight million, seven hundred twenty-one thousand, nine hundred twenty".