82646645722 has 32 divisors (see below), whose sum is σ = 127095667920. Its totient is φ = 40291829760.

The previous prime is 82646645713. The next prime is 82646645723. The reversal of 82646645722 is 22754664628.

It can be written as a sum of positive squares in 8 ways, for example, as 37550300841 + 45096344881 = 193779^2 + 212359^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82646645722.

It is not an unprimeable number, because it can be changed into a prime (82646645723) 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, 14050222 + ... + 14056102.

Almost surely, 2^82646645722 is an apocalyptic number.

82646645722 is a deficient number, since it is larger than the sum of its proper divisors (44449022198).

82646645722 is a wasteful number, since it uses less digits than its factorization.

82646645722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738.

The product of its digits is 7741440, while the sum is 52.

The spelling of 82646645722 in words is "eighty-two billion, six hundred forty-six million, six hundred forty-five thousand, seven hundred twenty-two".