12840568500623 has 2 divisors, whose sum is σ = 12840568500624. Its totient is φ = 12840568500622.

The previous prime is 12840568500589. The next prime is 12840568500677. The reversal of 12840568500623 is 32600586504821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12840568500623 - 2¹⁸ = 12840568238479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12840568509623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6420284250311 + 6420284250312.

It is an arithmetic number, because the mean of its divisors is an integer number (6420284250312).

Almost surely, 2^{12840568500623} is an apocalyptic number.

12840568500623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12840568500623 is an equidigital number, since it uses as much as digits as its factorization.

12840568500623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 12840568500623 in words is "twelve trillion, eight hundred forty billion, five hundred sixty-eight million, five hundred thousand, six hundred twenty-three".