23536772881 has 2 divisors, whose sum is σ = 23536772882. Its totient is φ = 23536772880.

The previous prime is 23536772869. The next prime is 23536772921. The reversal of 23536772881 is 18827763532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20398980625 + 3137792256 = 142825^2 + 56016^2 .

It is a cyclic number.

It is not a de Polignac number, because 23536772881 - 2¹¹ = 23536770833 is a prime.

It is a super-2 number, since 2×23536772881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23536772801) 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 as a sum of consecutive naturals, namely, 11768386440 + 11768386441.

It is an arithmetic number, because the mean of its divisors is an integer number (11768386441).

Almost surely, 2^23536772881 is an apocalyptic number.

It is an amenable number.

23536772881 is a deficient number, since it is larger than the sum of its proper divisors (1).

23536772881 is an equidigital number, since it uses as much as digits as its factorization.

23536772881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 52.

The spelling of 23536772881 in words is "twenty-three billion, five hundred thirty-six million, seven hundred seventy-two thousand, eight hundred eighty-one".