79890080443 has 4 divisors (see below), whose sum is σ = 79900440640. Its totient is φ = 79879720248.

The previous prime is 79890080407. The next prime is 79890080467. The reversal of 79890080443 is 34408009897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34408009897 = 1459 ⋅23583283.

It is a cyclic number.

It is not a de Polignac number, because 79890080443 - 2²¹ = 79887983291 is a prime.

It is a super-2 number, since 2×79890080443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79890080243) 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, 5168523 + ... + 5183956.

It is an arithmetic number, because the mean of its divisors is an integer number (19975110160).

Almost surely, 2^79890080443 is an apocalyptic number.

79890080443 is a deficient number, since it is larger than the sum of its proper divisors (10360197).

79890080443 is a wasteful number, since it uses less digits than its factorization.

79890080443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360196.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 79890080443 in words is "seventy-nine billion, eight hundred ninety million, eighty thousand, four hundred forty-three".