23452164781 has 2 divisors, whose sum is σ = 23452164782. Its totient is φ = 23452164780.

The previous prime is 23452164731. The next prime is 23452164803. The reversal of 23452164781 is 18746125432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23053563556 + 398601225 = 151834^2 + 19965^2 .

It is a cyclic number.

It is not a de Polignac number, because 23452164781 - 2⁷ = 23452164653 is a prime.

It is a super-2 number, since 2×23452164781² (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 (23452164731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11726082390 + 11726082391.

It is an arithmetic number, because the mean of its divisors is an integer number (11726082391).

Almost surely, 2^23452164781 is an apocalyptic number.

It is an amenable number.

23452164781 is a deficient number, since it is larger than the sum of its proper divisors (1).

23452164781 is an equidigital number, since it uses as much as digits as its factorization.

23452164781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The spelling of 23452164781 in words is "twenty-three billion, four hundred fifty-two million, one hundred sixty-four thousand, seven hundred eighty-one".