67668522586741 has 2 divisors, whose sum is σ = 67668522586742. Its totient is φ = 67668522586740.

The previous prime is 67668522586661. The next prime is 67668522586751. The reversal of 67668522586741 is 14768522586676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67160139326641 + 508383260100 = 8195129^2 + 713010^2 .

It is a cyclic number.

It is not a de Polignac number, because 67668522586741 - 2²¹ = 67668520489589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67668522586751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33834261293370 + 33834261293371.

It is an arithmetic number, because the mean of its divisors is an integer number (33834261293371).

Almost surely, 2^{67668522586741} is an apocalyptic number.

It is an amenable number.

67668522586741 is a deficient number, since it is larger than the sum of its proper divisors (1).

67668522586741 is an equidigital number, since it uses as much as digits as its factorization.

67668522586741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1625702400, while the sum is 73.

The spelling of 67668522586741 in words is "sixty-seven trillion, six hundred sixty-eight billion, five hundred twenty-two million, five hundred eighty-six thousand, seven hundred forty-one".