23092987861 has 2 divisors, whose sum is σ = 23092987862. Its totient is φ = 23092987860.

The previous prime is 23092987843. The next prime is 23092987871. The reversal of 23092987861 is 16878929032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15970640625 + 7122347236 = 126375^2 + 84394^2 .

It is a cyclic number.

It is not a de Polignac number, because 23092987861 - 2¹¹ = 23092985813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23092987871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11546493930 + 11546493931.

It is an arithmetic number, because the mean of its divisors is an integer number (11546493931).

Almost surely, 2^23092987861 is an apocalyptic number.

It is an amenable number.

23092987861 is a deficient number, since it is larger than the sum of its proper divisors (1).

23092987861 is an equidigital number, since it uses as much as digits as its factorization.

23092987861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 23092987861 in words is "twenty-three billion, ninety-two million, nine hundred eighty-seven thousand, eight hundred sixty-one".