822977366761 has 9 divisors (see below), whose sum is σ = 904605925629. Its totient is φ = 748152170700.

The previous prime is 822977366759. The next prime is 822977366767. The reversal of 822977366761 is 167663779228.

The square root of 822977366761 is 907181.

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

It is not a de Polignac number, because 822977366761 - 2¹ = 822977366759 is a prime.

It is a super-3 number, since 3×822977366761³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 822977366693 and 822977366702.

It is not an unprimeable number, because it can be changed into a prime (822977366767) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9937756 + ... + 10020226.

Almost surely, 2^822977366761 is an apocalyptic number.

822977366761 is the 907181-st square number.

822977366761 is the 453591-st centered octagonal number.

It is an amenable number.

822977366761 is a deficient number, since it is larger than the sum of its proper divisors (81628558868).

822977366761 is an frugal number, since it uses more digits than its factorization.

822977366761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164964 (or 82482 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 64.

Multiplying 822977366761 by its sum of digits (64), we get a square (52670551472704 = 7257448²).

The spelling of 822977366761 in words is "eight hundred twenty-two billion, nine hundred seventy-seven million, three hundred sixty-six thousand, seven hundred sixty-one".