23666878063 has 2 divisors, whose sum is σ = 23666878064. Its totient is φ = 23666878062.

The previous prime is 23666878051. The next prime is 23666878121. The reversal of 23666878063 is 36087866632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23666878063 - 2¹³ = 23666869871 is a prime.

It is a super-2 number, since 2×23666878063² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23666877995 and 23666878013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23666878033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11833439031 + 11833439032.

It is an arithmetic number, because the mean of its divisors is an integer number (11833439032).

Almost surely, 2^23666878063 is an apocalyptic number.

23666878063 is a deficient number, since it is larger than the sum of its proper divisors (1).

23666878063 is an equidigital number, since it uses as much as digits as its factorization.

23666878063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The spelling of 23666878063 in words is "twenty-three billion, six hundred sixty-six million, eight hundred seventy-eight thousand, sixty-three".