725772794448 has 160 divisors (see below), whose sum is σ = 2035069747200. Its totient is φ = 221556142080.

The previous prime is 725772794431. The next prime is 725772794449. The reversal of 725772794448 is 844497277527.

It is a super-2 number, since 2×725772794448² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725772794449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88602033 + ... + 88610223.

It is an arithmetic number, because the mean of its divisors is an integer number (12719185920).

Almost surely, 2^725772794448 is an apocalyptic number.

725772794448 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725772794448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017534873600).

725772794448 is an abundant number, since it is smaller than the sum of its proper divisors (1309296952752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725772794448 is a wasteful number, since it uses less digits than its factorization.

725772794448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9317 (or 9311 counting only the distinct ones).

The product of its digits is 221276160, while the sum is 66.

The spelling of 725772794448 in words is "seven hundred twenty-five billion, seven hundred seventy-two million, seven hundred ninety-four thousand, four hundred forty-eight".