722776543369 has 16 divisors (see below), whose sum is σ = 815557206528. Its totient is φ = 636839391232.

The previous prime is 722776543367. The next prime is 722776543393. The reversal of 722776543369 is 963345677227.

It is a happy number.

It is not a de Polignac number, because 722776543369 - 2¹ = 722776543367 is a prime.

It is a super-2 number, since 2×722776543369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722776543361) 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, 19646872 + ... + 19683625.

It is an arithmetic number, because the mean of its divisors is an integer number (50972325408).

Almost surely, 2^722776543369 is an apocalyptic number.

It is an amenable number.

722776543369 is a deficient number, since it is larger than the sum of its proper divisors (92780663159).

722776543369 is a wasteful number, since it uses less digits than its factorization.

722776543369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39330584.

The product of its digits is 80015040, while the sum is 61.

The spelling of 722776543369 in words is "seven hundred twenty-two billion, seven hundred seventy-six million, five hundred forty-three thousand, three hundred sixty-nine".