23921055069 has 4 divisors (see below), whose sum is σ = 31894740096. Its totient is φ = 15947370044.

The previous prime is 23921054951. The next prime is 23921055071. The reversal of 23921055069 is 96055012932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23921055069 - 2²⁰ = 23920006493 is a prime.

It is a super-2 number, since 2×23921055069² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23921055069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23921055269) 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, 3986842509 + ... + 3986842514.

It is an arithmetic number, because the mean of its divisors is an integer number (7973685024).

Almost surely, 2^23921055069 is an apocalyptic number.

It is an amenable number.

23921055069 is a deficient number, since it is larger than the sum of its proper divisors (7973685027).

23921055069 is an equidigital number, since it uses as much as digits as its factorization.

23921055069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973685026.

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 23921055069 in words is "twenty-three billion, nine hundred twenty-one million, fifty-five thousand, sixty-nine".