23426874691 has 4 divisors (see below), whose sum is σ = 25556590584. Its totient is φ = 21297158800.

The previous prime is 23426874673. The next prime is 23426874719. The reversal of 23426874691 is 19647862432.

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 23426874691 - 2²³ = 23418486083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23426874631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064857930 + ... + 1064857951.

It is an arithmetic number, because the mean of its divisors is an integer number (6389147646).

Almost surely, 2^23426874691 is an apocalyptic number.

23426874691 is a deficient number, since it is larger than the sum of its proper divisors (2129715893).

23426874691 is a wasteful number, since it uses less digits than its factorization.

23426874691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129715892.

The product of its digits is 3483648, while the sum is 52.

The spelling of 23426874691 in words is "twenty-three billion, four hundred twenty-six million, eight hundred seventy-four thousand, six hundred ninety-one".