82961821122244 has 9 divisors (see below), whose sum is σ = 145183218843117. Its totient is φ = 41480901452784.

The previous prime is 82961821122211. The next prime is 82961821122259. The reversal of 82961821122244 is 44222112816928.

The square root of 82961821122244 is 9108338.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13538263995844 + 69423557126400 = 3679438^2 + 8332080^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82961821122191 and 82961821122200.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 15939592 + ... + 20493760.

Almost surely, 2^{82961821122244} is an apocalyptic number.

82961821122244 is the 9108338-th square number.

It is an amenable number.

82961821122244 is a deficient number, since it is larger than the sum of its proper divisors (62221397720873).

82961821122244 is an frugal number, since it uses more digits than its factorization.

82961821122244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9108342 (or 4554171 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 52.

The spelling of 82961821122244 in words is "eighty-two trillion, nine hundred sixty-one billion, eight hundred twenty-one million, one hundred twenty-two thousand, two hundred forty-four".