14983945621 has 4 divisors (see below), whose sum is σ = 14998651200. Its totient is φ = 14969240044.

The previous prime is 14983945609. The next prime is 14983945651. The reversal of 14983945621 is 12654938941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14983945621 - 2⁵ = 14983945589 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 (14983945651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7351261 + ... + 7353298.

It is an arithmetic number, because the mean of its divisors is an integer number (3749662800).

Almost surely, 2^14983945621 is an apocalyptic number.

It is an amenable number.

14983945621 is a deficient number, since it is larger than the sum of its proper divisors (14705579).

14983945621 is a wasteful number, since it uses less digits than its factorization.

14983945621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14705578.

The product of its digits is 1866240, while the sum is 52.

The spelling of 14983945621 in words is "fourteen billion, nine hundred eighty-three million, nine hundred forty-five thousand, six hundred twenty-one".