23359056781 has 2 divisors, whose sum is σ = 23359056782. Its totient is φ = 23359056780.

The previous prime is 23359056769. The next prime is 23359056881. The reversal of 23359056781 is 18765095332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13119640681 + 10239416100 = 114541^2 + 101190^2 .

It is a cyclic number.

It is not a de Polignac number, because 23359056781 - 2³³ = 14769122189 is a prime.

It is a super-2 number, since 2×23359056781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23359056181) 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, 11679528390 + 11679528391.

It is an arithmetic number, because the mean of its divisors is an integer number (11679528391).

Almost surely, 2^23359056781 is an apocalyptic number.

It is an amenable number.

23359056781 is a deficient number, since it is larger than the sum of its proper divisors (1).

23359056781 is an equidigital number, since it uses as much as digits as its factorization.

23359056781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 23359056781 in words is "twenty-three billion, three hundred fifty-nine million, fifty-six thousand, seven hundred eighty-one".