79942220413 has 8 divisors (see below), whose sum is σ = 87230623680. Its totient is φ = 72657305280.

The previous prime is 79942220411. The next prime is 79942220417. The reversal of 79942220413 is 31402224997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79942220413 - 2¹ = 79942220411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79942220413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79942220411) 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 7 ways as a sum of consecutive naturals, for example, 823993 + ... + 915886.

It is an arithmetic number, because the mean of its divisors is an integer number (10903827960).

Almost surely, 2^79942220413 is an apocalyptic number.

It is an amenable number.

79942220413 is a deficient number, since it is larger than the sum of its proper divisors (7288403267).

79942220413 is a wasteful number, since it uses less digits than its factorization.

79942220413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744067.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 79942220413 in words is "seventy-nine billion, nine hundred forty-two million, two hundred twenty thousand, four hundred thirteen".