842479797929 has 16 divisors (see below), whose sum is σ = 1059659694720. Its totient is φ = 650668220160.

The previous prime is 842479797923. The next prime is 842479797947. The reversal of 842479797929 is 929797974248.

It is not a de Polignac number, because 842479797929 - 2²⁴ = 842463020713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (77).

It is a self number, because there is not a number n which added to its sum of digits gives 842479797929.

It is not an unprimeable number, because it can be changed into a prime (842479797923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48404114 + ... + 48421515.

It is an arithmetic number, because the mean of its divisors is an integer number (66228730920).

Almost surely, 2^842479797929 is an apocalyptic number.

It is an amenable number.

842479797929 is a deficient number, since it is larger than the sum of its proper divisors (217179896791).

842479797929 is a wasteful number, since it uses less digits than its factorization.

842479797929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96825760.

The product of its digits is 1152216576, while the sum is 77.

The spelling of 842479797929 in words is "eight hundred forty-two billion, four hundred seventy-nine million, seven hundred ninety-seven thousand, nine hundred twenty-nine".