725263536626731 has 16 divisors (see below), whose sum is σ = 793514280480768. Its totient is φ = 659901278275200.

The previous prime is 725263536626693. The next prime is 725263536626753. The reversal of 725263536626731 is 137626635362527.

It is a cyclic number.

It is not a de Polignac number, because 725263536626731 - 2¹⁵ = 725263536593963 is a prime.

It is a super-2 number, since 2×725263536626731² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725263536626771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708145155 + ... + 709168588.

It is an arithmetic number, because the mean of its divisors is an integer number (49594642530048).

Almost surely, 2^{725263536626731} is an apocalyptic number.

725263536626731 is a deficient number, since it is larger than the sum of its proper divisors (68250743854037).

725263536626731 is a wasteful number, since it uses less digits than its factorization.

725263536626731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417314762.

The product of its digits is 342921600, while the sum is 64.

The spelling of 725263536626731 in words is "seven hundred twenty-five trillion, two hundred sixty-three billion, five hundred thirty-six million, six hundred twenty-six thousand, seven hundred thirty-one".