23861222783977 has 2 divisors, whose sum is σ = 23861222783978. Its totient is φ = 23861222783976.

The previous prime is 23861222783963. The next prime is 23861222784001. The reversal of 23861222783977 is 77938722216832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13940209528281 + 9921013255696 = 3733659^2 + 3149764^2 .

It is a cyclic number.

It is not a de Polignac number, because 23861222783977 - 2³⁹ = 23311466970089 is a prime.

It is not a weakly prime, because it can be changed into another prime (23861222703977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11930611391988 + 11930611391989.

It is an arithmetic number, because the mean of its divisors is an integer number (11930611391989).

Almost surely, 2^{23861222783977} is an apocalyptic number.

It is an amenable number.

23861222783977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23861222783977 is an equidigital number, since it uses as much as digits as its factorization.

23861222783977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170698752, while the sum is 67.

The spelling of 23861222783977 in words is "twenty-three trillion, eight hundred sixty-one billion, two hundred twenty-two million, seven hundred eighty-three thousand, nine hundred seventy-seven".