79161746473 has 4 divisors (see below), whose sum is σ = 79244813268. Its totient is φ = 79078679680.

The previous prime is 79161746459. The next prime is 79161746497. The reversal of 79161746473 is 37464716197.

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 18363502144 + 60798244329 = 135512^2 + 246573^2 .

It is a cyclic number.

It is not a de Polignac number, because 79161746473 - 2²¹ = 79159649321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79161746453) 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, 41531968 + ... + 41533873.

It is an arithmetic number, because the mean of its divisors is an integer number (19811203317).

Almost surely, 2^79161746473 is an apocalyptic number.

It is an amenable number.

79161746473 is a deficient number, since it is larger than the sum of its proper divisors (83066795).

79161746473 is an equidigital number, since it uses as much as digits as its factorization.

79161746473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83066794.

The product of its digits is 5334336, while the sum is 55.

The spelling of 79161746473 in words is "seventy-nine billion, one hundred sixty-one million, seven hundred forty-six thousand, four hundred seventy-three".