79742017405824 has 32 divisors (see below), whose sum is σ = 211814733735240. Its totient is φ = 26580672468480.

The previous prime is 79742017405811. The next prime is 79742017405931. The reversal of 79742017405824 is 42850471024797.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103830751447 + ... + 103830752214.

Almost surely, 2^{79742017405824} is an apocalyptic number.

It is an amenable number.

79742017405824 is an abundant number, since it is smaller than the sum of its proper divisors (132072716329416).

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

79742017405824 is a wasteful number, since it uses less digits than its factorization.

79742017405824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207661503678 (or 207661503666 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 79742017405824 in words is "seventy-nine trillion, seven hundred forty-two billion, seventeen million, four hundred five thousand, eight hundred twenty-four".