14622985621 has 2 divisors, whose sum is σ = 14622985622. Its totient is φ = 14622985620.

The previous prime is 14622985571. The next prime is 14622985651. The reversal of 14622985621 is 12658922641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13093080625 + 1529904996 = 114425^2 + 39114^2 .

It is a cyclic number.

It is not a de Polignac number, because 14622985621 - 2⁷ = 14622985493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14622985651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7311492810 + 7311492811.

It is an arithmetic number, because the mean of its divisors is an integer number (7311492811).

Almost surely, 2^14622985621 is an apocalyptic number.

It is an amenable number.

14622985621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14622985621 is an equidigital number, since it uses as much as digits as its factorization.

14622985621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The spelling of 14622985621 in words is "fourteen billion, six hundred twenty-two million, nine hundred eighty-five thousand, six hundred twenty-one".