725845294475999 has 4 divisors (see below), whose sum is σ = 725906305271664. Its totient is φ = 725784283680336.

The previous prime is 725845294475993. The next prime is 725845294476061. The reversal of 725845294475999 is 999574492548527.

It is a happy number.

725845294475999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725845294475999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725845294475993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30505379987 + ... + 30505403780.

It is an arithmetic number, because the mean of its divisors is an integer number (181476576317916).

Almost surely, 2^{725845294475999} is an apocalyptic number.

725845294475999 is a deficient number, since it is larger than the sum of its proper divisors (61010795665).

725845294475999 is a wasteful number, since it uses less digits than its factorization.

725845294475999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61010795664.

The product of its digits is 82301184000, while the sum is 89.

The spelling of 725845294475999 in words is "seven hundred twenty-five trillion, eight hundred forty-five billion, two hundred ninety-four million, four hundred seventy-five thousand, nine hundred ninety-nine".