23648773717 has 2 divisors, whose sum is σ = 23648773718. Its totient is φ = 23648773716.

The previous prime is 23648773651. The next prime is 23648773721. The reversal of 23648773717 is 71737784632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21132146161 + 2516627556 = 145369^2 + 50166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23648773717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23648771717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11824386858 + 11824386859.

It is an arithmetic number, because the mean of its divisors is an integer number (11824386859).

Almost surely, 2^23648773717 is an apocalyptic number.

It is an amenable number.

23648773717 is a deficient number, since it is larger than the sum of its proper divisors (1).

23648773717 is an equidigital number, since it uses as much as digits as its factorization.

23648773717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8297856, while the sum is 55.

The spelling of 23648773717 in words is "twenty-three billion, six hundred forty-eight million, seven hundred seventy-three thousand, seven hundred seventeen".