79281606841 has 4 divisors (see below), whose sum is σ = 80098943092. Its totient is φ = 78464270592.

The previous prime is 79281606839. The next prime is 79281606863. The reversal of 79281606841 is 14860618297.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50803356816 + 28478250025 = 225396^2 + 168755^2 .

It is a cyclic number.

It is not a de Polignac number, because 79281606841 - 2¹ = 79281606839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79281606871) 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, 408667980 + ... + 408668173.

It is an arithmetic number, because the mean of its divisors is an integer number (20024735773).

Almost surely, 2^79281606841 is an apocalyptic number.

It is an amenable number.

79281606841 is a deficient number, since it is larger than the sum of its proper divisors (817336251).

79281606841 is an equidigital number, since it uses as much as digits as its factorization.

79281606841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817336250.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 79281606841 in words is "seventy-nine billion, two hundred eighty-one million, six hundred six thousand, eight hundred forty-one".