23642268833 has 4 divisors (see below), whose sum is σ = 23661760788. Its totient is φ = 23622776880.

The previous prime is 23642268809. The next prime is 23642268851. The reversal of 23642268833 is 33886224632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6283415824 + 17358853009 = 79268^2 + 131753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23642268833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23642268863) 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, 9744158 + ... + 9746583.

It is an arithmetic number, because the mean of its divisors is an integer number (5915440197).

Almost surely, 2^23642268833 is an apocalyptic number.

It is an amenable number.

23642268833 is a deficient number, since it is larger than the sum of its proper divisors (19491955).

23642268833 is a wasteful number, since it uses less digits than its factorization.

23642268833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19491954.

The product of its digits is 1990656, while the sum is 47.

The spelling of 23642268833 in words is "twenty-three billion, six hundred forty-two million, two hundred sixty-eight thousand, eight hundred thirty-three".