14236487021 has 16 divisors (see below), whose sum is σ = 15293583360. Its totient is φ = 13205203200.

The previous prime is 14236487009. The next prime is 14236487047. The reversal of 14236487021 is 12078463241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14236487021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14236483021) 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, 304175 + ... + 347843.

It is an arithmetic number, because the mean of its divisors is an integer number (955848960).

Almost surely, 2^14236487021 is an apocalyptic number.

It is an amenable number.

14236487021 is a deficient number, since it is larger than the sum of its proper divisors (1057096339).

14236487021 is a wasteful number, since it uses less digits than its factorization.

14236487021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43964.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 14236487021 in words is "fourteen billion, two hundred thirty-six million, four hundred eighty-seven thousand, twenty-one".