79826170045 has 8 divisors (see below), whose sum is σ = 96277656024. Its totient is φ = 63536768064.

The previous prime is 79826170013. The next prime is 79826170103. The reversal of 79826170045 is 54007162897.

It can be written as a sum of positive squares in 4 ways, for example, as 30962625444 + 48863544601 = 175962^2 + 221051^2 .

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 79826170045 - 2⁵ = 79826170013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40519914 + ... + 40521883.

It is an arithmetic number, because the mean of its divisors is an integer number (12034707003).

Almost surely, 2^79826170045 is an apocalyptic number.

It is an amenable number.

79826170045 is a deficient number, since it is larger than the sum of its proper divisors (16451485979).

79826170045 is a wasteful number, since it uses less digits than its factorization.

79826170045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81041999.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 79826170045 in words is "seventy-nine billion, eight hundred twenty-six million, one hundred seventy thousand, forty-five".