79434186459 has 4 divisors (see below), whose sum is σ = 105912248616. Its totient is φ = 52956124304.

The previous prime is 79434186443. The next prime is 79434186467. The reversal of 79434186459 is 95468143497.

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 79434186459 - 2⁴ = 79434186443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79434186659) 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, 13239031074 + ... + 13239031079.

It is an arithmetic number, because the mean of its divisors is an integer number (26478062154).

Almost surely, 2^79434186459 is an apocalyptic number.

79434186459 is a deficient number, since it is larger than the sum of its proper divisors (26478062157).

79434186459 is a wasteful number, since it uses less digits than its factorization.

79434186459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26478062156.

The product of its digits is 26127360, while the sum is 60.

The spelling of 79434186459 in words is "seventy-nine billion, four hundred thirty-four million, one hundred eighty-six thousand, four hundred fifty-nine".