725531962239629 has 2 divisors, whose sum is σ = 725531962239630. Its totient is φ = 725531962239628.

The previous prime is 725531962239613. The next prime is 725531962239647. The reversal of 725531962239629 is 926932269135527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534909703453225 + 190622258786404 = 23128115^2 + 13806602^2 .

It is an emirp because it is prime and its reverse (926932269135527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725531962239629 - 2⁴ = 725531962239613 is a prime.

It is a super-2 number, since 2×725531962239629² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725531962239229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362765981119814 + 362765981119815.

It is an arithmetic number, because the mean of its divisors is an integer number (362765981119815).

Almost surely, 2^{725531962239629} is an apocalyptic number.

It is an amenable number.

725531962239629 is a deficient number, since it is larger than the sum of its proper divisors (1).

725531962239629 is an equidigital number, since it uses as much as digits as its factorization.

725531962239629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661348800, while the sum is 71.

The spelling of 725531962239629 in words is "seven hundred twenty-five trillion, five hundred thirty-one billion, nine hundred sixty-two million, two hundred thirty-nine thousand, six hundred twenty-nine".