722728255749 has 16 divisors (see below), whose sum is σ = 966518280000. Its totient is φ = 480378877056.

The previous prime is 722728255723. The next prime is 722728255751. The reversal of 722728255749 is 947552827227.

It is not a de Polignac number, because 722728255749 - 2¹⁶ = 722728190213 is a prime.

It is a super-2 number, since 2×722728255749² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722728255692 and 722728255701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722728253749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9436162 + ... + 9512444.

It is an arithmetic number, because the mean of its divisors is an integer number (60407392500).

Almost surely, 2^722728255749 is an apocalyptic number.

It is an amenable number.

722728255749 is a deficient number, since it is larger than the sum of its proper divisors (243790024251).

722728255749 is a wasteful number, since it uses less digits than its factorization.

722728255749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85684.

The product of its digits is 39513600, while the sum is 60.

The spelling of 722728255749 in words is "seven hundred twenty-two billion, seven hundred twenty-eight million, two hundred fifty-five thousand, seven hundred forty-nine".