12572410621 has 2 divisors, whose sum is σ = 12572410622. Its totient is φ = 12572410620.

The previous prime is 12572410457. The next prime is 12572410651. The reversal of 12572410621 is 12601427521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10854722596 + 1717688025 = 104186^2 + 41445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12572410621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12572410651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286205310 + 6286205311.

It is an arithmetic number, because the mean of its divisors is an integer number (6286205311).

Almost surely, 2^12572410621 is an apocalyptic number.

It is an amenable number.

12572410621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12572410621 is an equidigital number, since it uses as much as digits as its factorization.

12572410621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 12572410621 in words is "twelve billion, five hundred seventy-two million, four hundred ten thousand, six hundred twenty-one".