13252767421 has 2 divisors, whose sum is σ = 13252767422. Its totient is φ = 13252767420.

The previous prime is 13252767413. The next prime is 13252767497. The reversal of 13252767421 is 12476725231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12815372025 + 437395396 = 113205^2 + 20914^2 .

It is a cyclic number.

It is not a de Polignac number, because 13252767421 - 2³ = 13252767413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13252797421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626383710 + 6626383711.

It is an arithmetic number, because the mean of its divisors is an integer number (6626383711).

Almost surely, 2^13252767421 is an apocalyptic number.

It is an amenable number.

13252767421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13252767421 is an equidigital number, since it uses as much as digits as its factorization.

13252767421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The spelling of 13252767421 in words is "thirteen billion, two hundred fifty-two million, seven hundred sixty-seven thousand, four hundred twenty-one".