822849690631 has 4 divisors (see below), whose sum is σ = 841985729992. Its totient is φ = 803713651272.

The previous prime is 822849690613. The next prime is 822849690659. The reversal of 822849690631 is 136096948228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 822849690631 - 2¹³ = 822849682439 is a prime.

It is a super-2 number, since 2×822849690631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822849690671) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9568019616 + ... + 9568019701.

It is an arithmetic number, because the mean of its divisors is an integer number (210496432498).

Almost surely, 2^822849690631 is an apocalyptic number.

822849690631 is a deficient number, since it is larger than the sum of its proper divisors (19136039361).

822849690631 is a wasteful number, since it uses less digits than its factorization.

822849690631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136039360.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 822849690631 in words is "eight hundred twenty-two billion, eight hundred forty-nine million, six hundred ninety thousand, six hundred thirty-one".