68937438135023 has 2 divisors, whose sum is σ = 68937438135024. Its totient is φ = 68937438135022.

The previous prime is 68937438134899. The next prime is 68937438135067. The reversal of 68937438135023 is 32053183473986.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68937438135023 - 2⁸ = 68937438134767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68937438135323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34468719067511 + 34468719067512.

It is an arithmetic number, because the mean of its divisors is an integer number (34468719067512).

It is a 1-persistent number, because it is pandigital, but 2⋅68937438135023 = 137874876270046 is not.

Almost surely, 2^{68937438135023} is an apocalyptic number.

68937438135023 is a deficient number, since it is larger than the sum of its proper divisors (1).

68937438135023 is an equidigital number, since it uses as much as digits as its factorization.

68937438135023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 62.

The spelling of 68937438135023 in words is "sixty-eight trillion, nine hundred thirty-seven billion, four hundred thirty-eight million, one hundred thirty-five thousand, twenty-three".