822323972579 has 4 divisors (see below), whose sum is σ = 870695970984. Its totient is φ = 773951974176.

The previous prime is 822323972557. The next prime is 822323972597. The reversal of 822323972579 is 975279323228.

It is a happy number.

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 822323972579 - 2¹⁶ = 822323907043 is a prime.

It is a super-2 number, since 2×822323972579² (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 (822323972549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24185999177 + ... + 24185999210.

It is an arithmetic number, because the mean of its divisors is an integer number (217673992746).

Almost surely, 2^822323972579 is an apocalyptic number.

822323972579 is a deficient number, since it is larger than the sum of its proper divisors (48371998405).

822323972579 is a wasteful number, since it uses less digits than its factorization.

822323972579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48371998404.

The product of its digits is 22861440, while the sum is 59.

The spelling of 822323972579 in words is "eight hundred twenty-two billion, three hundred twenty-three million, nine hundred seventy-two thousand, five hundred seventy-nine".