79418185838020 has 48 divisors (see below), whose sum is σ = 168166496836800. Its totient is φ = 31503167429760.

The previous prime is 79418185838011. The next prime is 79418185838021. The reversal of 79418185838020 is 2083858181497.

It is not an unprimeable number, because it can be changed into a prime (79418185838021) 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 15 ways as a sum of consecutive naturals, for example, 6565455 + ... + 14210614.

It is an arithmetic number, because the mean of its divisors is an integer number (3503468684100).

Almost surely, 2^{79418185838020} is an apocalyptic number.

It is an amenable number.

79418185838020 is an abundant number, since it is smaller than the sum of its proper divisors (88748310998780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79418185838020 is a wasteful number, since it uses less digits than its factorization.

79418185838020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20777668 (or 20777666 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 64.

The spelling of 79418185838020 in words is "seventy-nine trillion, four hundred eighteen billion, one hundred eighty-five million, eight hundred thirty-eight thousand, twenty".