726725751 has 16 divisors (see below), whose sum is σ = 985891200. Its totient is φ = 476058528.

The previous prime is 726725749. The next prime is 726725789. The reversal of 726725751 is 157527627.

It is not a de Polignac number, because 726725751 - 2¹ = 726725749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726725551) 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 15 ways as a sum of consecutive naturals, for example, 79905 + ... + 88533.

It is an arithmetic number, because the mean of its divisors is an integer number (61618200).

Almost surely, 2^726725751 is an apocalyptic number.

726725751 is a deficient number, since it is larger than the sum of its proper divisors (259165449).

726725751 is a wasteful number, since it uses less digits than its factorization.

726725751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118.

The product of its digits is 205800, while the sum is 42.

The square root of 726725751 is about 26957.8513795147. The cubic root of 726725751 is about 899.0631201291.

The spelling of 726725751 in words is "seven hundred twenty-six million, seven hundred twenty-five thousand, seven hundred fifty-one".