68299652893 has 2 divisors, whose sum is σ = 68299652894. Its totient is φ = 68299652892.

The previous prime is 68299652867. The next prime is 68299652909. The reversal of 68299652893 is 39825699286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63303566404 + 4996086489 = 251602^2 + 70683^2 .

It is a cyclic number.

It is not a de Polignac number, because 68299652893 - 2¹³ = 68299644701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68299652833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34149826446 + 34149826447.

It is an arithmetic number, because the mean of its divisors is an integer number (34149826447).

Almost surely, 2^68299652893 is an apocalyptic number.

It is an amenable number.

68299652893 is a deficient number, since it is larger than the sum of its proper divisors (1).

68299652893 is an equidigital number, since it uses as much as digits as its factorization.

68299652893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100776960, while the sum is 67.

The spelling of 68299652893 in words is "sixty-eight billion, two hundred ninety-nine million, six hundred fifty-two thousand, eight hundred ninety-three".