14977402621 has 2 divisors, whose sum is σ = 14977402622. Its totient is φ = 14977402620.

The previous prime is 14977402549. The next prime is 14977402673. The reversal of 14977402621 is 12620477941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13585068025 + 1392334596 = 116555^2 + 37314^2 .

It is a cyclic number.

It is not a de Polignac number, because 14977402621 - 2¹⁹ = 14976878333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14977402681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7488701310 + 7488701311.

It is an arithmetic number, because the mean of its divisors is an integer number (7488701311).

Almost surely, 2^14977402621 is an apocalyptic number.

It is an amenable number.

14977402621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14977402621 is an equidigital number, since it uses as much as digits as its factorization.

14977402621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 14977402621 in words is "fourteen billion, nine hundred seventy-seven million, four hundred two thousand, six hundred twenty-one".