725350857399 has 48 divisors (see below), whose sum is σ = 1272172749120. Its totient is φ = 389377497600.

The previous prime is 725350857391. The next prime is 725350857401. The reversal of 725350857399 is 993758053527.

725350857399 is a `hidden beast` number, since 7 + 2 + 5 + 3 + 50 + 8 + 573 + 9 + 9 = 666.

It is not a de Polignac number, because 725350857399 - 2³ = 725350857391 is a prime.

It is a super-2 number, since 2×725350857399² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725350857391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5297502 + ... + 5432699.

It is an arithmetic number, because the mean of its divisors is an integer number (26503598940).

Almost surely, 2^725350857399 is an apocalyptic number.

725350857399 is a deficient number, since it is larger than the sum of its proper divisors (546821891721).

725350857399 is a wasteful number, since it uses less digits than its factorization.

725350857399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10730280 (or 10730277 counting only the distinct ones).

The product of its (nonzero) digits is 71442000, while the sum is 63.

The spelling of 725350857399 in words is "seven hundred twenty-five billion, three hundred fifty million, eight hundred fifty-seven thousand, three hundred ninety-nine".