725327420635 has 4 divisors (see below), whose sum is σ = 870392904768. Its totient is φ = 580261936504.

The previous prime is 725327420557. The next prime is 725327420639. The reversal of 725327420635 is 536024723527.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 725327420635 - 2⁷ = 725327420507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725327420639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72532742059 + ... + 72532742068.

It is an arithmetic number, because the mean of its divisors is an integer number (217598226192).

Almost surely, 2^725327420635 is an apocalyptic number.

725327420635 is a deficient number, since it is larger than the sum of its proper divisors (145065484133).

725327420635 is a wasteful number, since it uses less digits than its factorization.

725327420635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145065484132.

The product of its (nonzero) digits is 2116800, while the sum is 46.

The spelling of 725327420635 in words is "seven hundred twenty-five billion, three hundred twenty-seven million, four hundred twenty thousand, six hundred thirty-five".