725319981507 has 8 divisors (see below), whose sum is σ = 1055010882240. Its totient is φ = 439587867560.

The previous prime is 725319981497. The next prime is 725319981523. The reversal of 725319981507 is 705189913527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725319981507 - 2⁸ = 725319981251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725319981707) 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 7 ways as a sum of consecutive naturals, for example, 10989696657 + ... + 10989696722.

It is an arithmetic number, because the mean of its divisors is an integer number (131876360280).

Almost surely, 2^725319981507 is an apocalyptic number.

725319981507 is a deficient number, since it is larger than the sum of its proper divisors (329690900733).

725319981507 is a wasteful number, since it uses less digits than its factorization.

725319981507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21979393393.

The product of its (nonzero) digits is 4762800, while the sum is 57.

The spelling of 725319981507 in words is "seven hundred twenty-five billion, three hundred nineteen million, nine hundred eighty-one thousand, five hundred seven".