725947068729 has 4 divisors (see below), whose sum is σ = 967929424976. Its totient is φ = 483964712484.

The previous prime is 725947068709. The next prime is 725947068731. The reversal of 725947068729 is 927860749527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 725947068729 - 2¹¹ = 725947066681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725947068729.

It is not an unprimeable number, because it can be changed into a prime (725947068709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120991178119 + ... + 120991178124.

It is an arithmetic number, because the mean of its divisors is an integer number (241982356244).

Almost surely, 2^725947068729 is an apocalyptic number.

It is an amenable number.

725947068729 is a deficient number, since it is larger than the sum of its proper divisors (241982356247).

725947068729 is a wasteful number, since it uses less digits than its factorization.

725947068729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241982356246.

The product of its (nonzero) digits is 106686720, while the sum is 66.

The spelling of 725947068729 in words is "seven hundred twenty-five billion, nine hundred forty-seven million, sixty-eight thousand, seven hundred twenty-nine".