79123432427 has 4 divisors (see below), whose sum is σ = 85209850320. Its totient is φ = 73037014536.

The previous prime is 79123432387. The next prime is 79123432441. The reversal of 79123432427 is 72423432197.

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 79123432427 - 2¹⁸ = 79123170283 is a prime.

It is a super-2 number, since 2×79123432427² (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 (79123432327) 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, 3043208927 + ... + 3043208952.

It is an arithmetic number, because the mean of its divisors is an integer number (21302462580).

Almost surely, 2^79123432427 is an apocalyptic number.

79123432427 is a deficient number, since it is larger than the sum of its proper divisors (6086417893).

79123432427 is a wasteful number, since it uses less digits than its factorization.

79123432427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086417892.

The product of its digits is 508032, while the sum is 44.

The spelling of 79123432427 in words is "seventy-nine billion, one hundred twenty-three million, four hundred thirty-two thousand, four hundred twenty-seven".