23733980081 has 4 divisors (see below), whose sum is σ = 27124548672. Its totient is φ = 20343411492.

The previous prime is 23733980059. The next prime is 23733980087. The reversal of 23733980081 is 18008933732.

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 23733980081 - 2¹⁰ = 23733979057 is a prime.

It is a super-2 number, since 2×23733980081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23733980087) 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, 1695284285 + ... + 1695284298.

It is an arithmetic number, because the mean of its divisors is an integer number (6781137168).

Almost surely, 2^23733980081 is an apocalyptic number.

It is an amenable number.

23733980081 is a deficient number, since it is larger than the sum of its proper divisors (3390568591).

23733980081 is an equidigital number, since it uses as much as digits as its factorization.

23733980081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390568590.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 23733980081 in words is "twenty-three billion, seven hundred thirty-three million, nine hundred eighty thousand, eighty-one".