68381105534783 has 2 divisors, whose sum is σ = 68381105534784. Its totient is φ = 68381105534782.

The previous prime is 68381105534719. The next prime is 68381105534801. The reversal of 68381105534783 is 38743550118386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68381105534783 - 2⁶ = 68381105534719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68381105534083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34190552767391 + 34190552767392.

It is an arithmetic number, because the mean of its divisors is an integer number (34190552767392).

Almost surely, 2^{68381105534783} is an apocalyptic number.

68381105534783 is a deficient number, since it is larger than the sum of its proper divisors (1).

68381105534783 is an equidigital number, since it uses as much as digits as its factorization.

68381105534783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 68381105534783 in words is "sixty-eight trillion, three hundred eighty-one billion, one hundred five million, five hundred thirty-four thousand, seven hundred eighty-three".