725436399432 has 48 divisors (see below), whose sum is σ = 1914066977040. Its totient is φ = 229085176032.

The previous prime is 725436399421. The next prime is 725436399433. The reversal of 725436399432 is 234993634527.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (725436399433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41856318 + ... + 41873645.

It is an arithmetic number, because the mean of its divisors is an integer number (39876395355).

Almost surely, 2^725436399432 is an apocalyptic number.

It is an amenable number.

725436399432 is an abundant number, since it is smaller than the sum of its proper divisors (1188630577608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725436399432 is a wasteful number, since it uses less digits than its factorization.

725436399432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83730010 (or 83729987 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 57.

The spelling of 725436399432 in words is "seven hundred twenty-five billion, four hundred thirty-six million, three hundred ninety-nine thousand, four hundred thirty-two".