23772135943 has 2 divisors, whose sum is σ = 23772135944. Its totient is φ = 23772135942.

The previous prime is 23772135857. The next prime is 23772135973. The reversal of 23772135943 is 34953127732.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23772135943 is a prime.

It is a super-2 number, since 2×23772135943² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23772135893 and 23772135902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23772135973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886067971 + 11886067972.

It is an arithmetic number, because the mean of its divisors is an integer number (11886067972).

Almost surely, 2^23772135943 is an apocalyptic number.

23772135943 is a deficient number, since it is larger than the sum of its proper divisors (1).

23772135943 is an equidigital number, since it uses as much as digits as its factorization.

23772135943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 46.

The spelling of 23772135943 in words is "twenty-three billion, seven hundred seventy-two million, one hundred thirty-five thousand, nine hundred forty-three".