819822269979 has 16 divisors (see below), whose sum is σ = 1214565580800. Its totient is φ = 546541848648.

The previous prime is 819822269969. The next prime is 819822270011. The reversal of 819822269979 is 979962228918.

It is not a de Polignac number, because 819822269979 - 2⁵ = 819822269947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (819822269969) 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, 4005862 + ... + 4205540.

It is an arithmetic number, because the mean of its divisors is an integer number (75910348800).

Almost surely, 2^819822269979 is an apocalyptic number.

819822269979 is a deficient number, since it is larger than the sum of its proper divisors (394743310821).

819822269979 is a wasteful number, since it uses less digits than its factorization.

819822269979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351751 (or 351745 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 72.

It can be divided in two parts, 819822 and 269979, that added together give a palindrome (1089801).

The spelling of 819822269979 in words is "eight hundred nineteen billion, eight hundred twenty-two million, two hundred sixty-nine thousand, nine hundred seventy-nine".