725263536626693 has 2 divisors, whose sum is σ = 725263536626694. Its totient is φ = 725263536626692.

The previous prime is 725263536626689. The next prime is 725263536626753. The reversal of 725263536626693 is 396626635362527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 637131959209729 + 88131577416964 = 25241473^2 + 9387842^2 .

It is a cyclic number.

It is not a de Polignac number, because 725263536626693 - 2² = 725263536626689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725263536626593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362631768313346 + 362631768313347.

It is an arithmetic number, because the mean of its divisors is an integer number (362631768313347).

Almost surely, 2^{725263536626693} is an apocalyptic number.

It is an amenable number.

725263536626693 is a deficient number, since it is larger than the sum of its proper divisors (1).

725263536626693 is an equidigital number, since it uses as much as digits as its factorization.

725263536626693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2645395200, while the sum is 71.

The spelling of 725263536626693 in words is "seven hundred twenty-five trillion, two hundred sixty-three billion, five hundred thirty-six million, six hundred twenty-six thousand, six hundred ninety-three".