725951639493 has 8 divisors (see below), whose sum is σ = 1075483910400. Its totient is φ = 483967759644.

The previous prime is 725951639453. The next prime is 725951639531. The reversal of 725951639493 is 394936159527.

725951639493 is a `hidden beast` number, since 7 + 2 + 595 + 1 + 6 + 39 + 4 + 9 + 3 = 666.

725951639493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725951639493 - 2¹² = 725951635397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725951639493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725951639453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13443548853 + ... + 13443548906.

It is an arithmetic number, because the mean of its divisors is an integer number (134435488800).

Almost surely, 2^725951639493 is an apocalyptic number.

It is an amenable number.

725951639493 is a deficient number, since it is larger than the sum of its proper divisors (349532270907).

725951639493 is a wasteful number, since it uses less digits than its factorization.

725951639493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26887097768 (or 26887097762 counting only the distinct ones).

The product of its digits is 55112400, while the sum is 63.

The spelling of 725951639493 in words is "seven hundred twenty-five billion, nine hundred fifty-one million, six hundred thirty-nine thousand, four hundred ninety-three".