14318631621 has 24 divisors (see below), whose sum is σ = 23647653120. Its totient is φ = 8178424416.

The previous prime is 14318631611. The next prime is 14318631631. The reversal of 14318631621 is 12613681341.

14318631621 is a `hidden beast` number, since 1 + 4 + 3 + 18 + 631 + 6 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (14318631611) and next prime (14318631631).

It is not a de Polignac number, because 14318631621 - 2¹⁰ = 14318630597 is a prime.

It is a super-2 number, since 2×14318631621² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14318631611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94900 + ... + 194018.

It is an arithmetic number, because the mean of its divisors is an integer number (985318880).

Almost surely, 2^14318631621 is an apocalyptic number.

It is an amenable number.

14318631621 is a deficient number, since it is larger than the sum of its proper divisors (9329021499).

14318631621 is a wasteful number, since it uses less digits than its factorization.

14318631621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101425 (or 101422 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 14318631621 in words is "fourteen billion, three hundred eighteen million, six hundred thirty-one thousand, six hundred twenty-one".