23642364911 has 4 divisors (see below), whose sum is σ = 25791670824. Its totient is φ = 21493059000.

The previous prime is 23642364887. The next prime is 23642364913. The reversal of 23642364911 is 11946324632.

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 23642364911 - 2⁶ = 23642364847 is a prime.

It is a super-2 number, since 2×23642364911² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642364913) 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, 1074652940 + ... + 1074652961.

It is an arithmetic number, because the mean of its divisors is an integer number (6447917706).

Almost surely, 2^23642364911 is an apocalyptic number.

23642364911 is a deficient number, since it is larger than the sum of its proper divisors (2149305913).

23642364911 is a wasteful number, since it uses less digits than its factorization.

23642364911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149305912.

The product of its digits is 186624, while the sum is 41.

The spelling of 23642364911 in words is "twenty-three billion, six hundred forty-two million, three hundred sixty-four thousand, nine hundred eleven".