725746084685 has 12 divisors (see below), whose sum is σ = 910406622972. Its totient is φ = 555353523648.

The previous prime is 725746084633. The next prime is 725746084747. The reversal of 725746084685 is 586480647527.

It can be written as a sum of positive squares in 2 ways, for example, as 353161587076 + 372584497609 = 594274^2 + 610397^2 .

It is not a de Polignac number, because 725746084685 - 2³⁴ = 708566215501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137189432 + ... + 137194721.

It is an arithmetic number, because the mean of its divisors is an integer number (75867218581).

Almost surely, 2^725746084685 is an apocalyptic number.

It is an amenable number.

725746084685 is a deficient number, since it is larger than the sum of its proper divisors (184660538287).

725746084685 is a wasteful number, since it uses less digits than its factorization.

725746084685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274384204 (or 274384181 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 62.

The spelling of 725746084685 in words is "seven hundred twenty-five billion, seven hundred forty-six million, eighty-four thousand, six hundred eighty-five".