14493747021 has 16 divisors (see below), whose sum is σ = 20833110144. Its totient is φ = 8909982144.

The previous prime is 14493747019. The next prime is 14493747031. The reversal of 14493747021 is 12074739441.

It is not a de Polignac number, because 14493747021 - 2¹ = 14493747019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14493747031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154446 + ... + 229871.

It is an arithmetic number, because the mean of its divisors is an integer number (1302069384).

Almost surely, 2^14493747021 is an apocalyptic number.

It is an amenable number.

14493747021 is a deficient number, since it is larger than the sum of its proper divisors (6339363123).

14493747021 is a wasteful number, since it uses less digits than its factorization.

14493747021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385300.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 14493747021 in words is "fourteen billion, four hundred ninety-three million, seven hundred forty-seven thousand, twenty-one".