725502774643 has 2 divisors, whose sum is σ = 725502774644. Its totient is φ = 725502774642.

The previous prime is 725502774593. The next prime is 725502774683. The reversal of 725502774643 is 346477205527.

It is a strong prime.

It is an emirp because it is prime and its reverse (346477205527) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725502774643 is a prime.

It is not a weakly prime, because it can be changed into another prime (725502774683) 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 as a sum of consecutive naturals, namely, 362751387321 + 362751387322.

It is an arithmetic number, because the mean of its divisors is an integer number (362751387322).

Almost surely, 2^725502774643 is an apocalyptic number.

725502774643 is a deficient number, since it is larger than the sum of its proper divisors (1).

725502774643 is an equidigital number, since it uses as much as digits as its factorization.

725502774643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9878400, while the sum is 52.

The spelling of 725502774643 in words is "seven hundred twenty-five billion, five hundred two million, seven hundred seventy-four thousand, six hundred forty-three".