724710542642621 has 2 divisors, whose sum is σ = 724710542642622. Its totient is φ = 724710542642620.

The previous prime is 724710542642609. The next prime is 724710542642629. The reversal of 724710542642621 is 126246245017427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449057209540900 + 275653333101721 = 21190970^2 + 16602811^2 .

It is a cyclic number.

It is not a de Polignac number, because 724710542642621 - 2³⁸ = 724435664735677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724710542642629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362355271321310 + 362355271321311.

It is an arithmetic number, because the mean of its divisors is an integer number (362355271321311).

Almost surely, 2^{724710542642621} is an apocalyptic number.

It is an amenable number.

724710542642621 is a deficient number, since it is larger than the sum of its proper divisors (1).

724710542642621 is an equidigital number, since it uses as much as digits as its factorization.

724710542642621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 724710542642621 in words is "seven hundred twenty-four trillion, seven hundred ten billion, five hundred forty-two million, six hundred forty-two thousand, six hundred twenty-one".