725781537586 has 48 divisors (see below), whose sum is σ = 1335380450400. Its totient is φ = 294167075328.

The previous prime is 725781537581. The next prime is 725781537589. The reversal of 725781537586 is 685735187527.

It is not an unprimeable number, because it can be changed into a prime (725781537581) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 736605 + ... + 1412143.

It is an arithmetic number, because the mean of its divisors is an integer number (27820426050).

Almost surely, 2^725781537586 is an apocalyptic number.

725781537586 is a deficient number, since it is larger than the sum of its proper divisors (609598912814).

725781537586 is a wasteful number, since it uses less digits than its factorization.

725781537586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676151 (or 676144 counting only the distinct ones).

The product of its digits is 98784000, while the sum is 64.

It can be divided in two parts, 7257815 and 37586, that added together give a square (7295401 = 2701²).

The spelling of 725781537586 in words is "seven hundred twenty-five billion, seven hundred eighty-one million, five hundred thirty-seven thousand, five hundred eighty-six".