79566262089047 has 4 divisors (see below), whose sum is σ = 79568640287376. Its totient is φ = 79563883890720.

The previous prime is 79566262088993. The next prime is 79566262089073. The reversal of 79566262089047 is 74098026266597.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79566262089047 - 2¹² = 79566262084951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79566262089947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189048979 + ... + 1189115892.

It is an arithmetic number, because the mean of its divisors is an integer number (19892160071844).

Almost surely, 2^{79566262089047} is an apocalyptic number.

79566262089047 is a deficient number, since it is larger than the sum of its proper divisors (2378198329).

79566262089047 is a wasteful number, since it uses less digits than its factorization.

79566262089047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378198328.

The product of its (nonzero) digits is 548674560, while the sum is 71.

The spelling of 79566262089047 in words is "seventy-nine trillion, five hundred sixty-six billion, two hundred sixty-two million, eighty-nine thousand, forty-seven".