725784268730 has 16 divisors (see below), whose sum is σ = 1306425684744. Its totient is φ = 290310596160.

The previous prime is 725784268723. The next prime is 725784268747. The reversal of 725784268730 is 37862487527.

It can be written as a sum of positive squares in 4 ways, for example, as 724451215609 + 1333053121 = 851147^2 + 36511^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 725784268730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749504 + ... + 1418916.

Almost surely, 2^725784268730 is an apocalyptic number.

725784268730 is a deficient number, since it is larger than the sum of its proper divisors (580641416014).

725784268730 is a wasteful number, since it uses less digits than its factorization.

725784268730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777841.

The product of its (nonzero) digits is 31610880, while the sum is 59.

The spelling of 725784268730 in words is "seven hundred twenty-five billion, seven hundred eighty-four million, two hundred sixty-eight thousand, seven hundred thirty".