68229351331 has 2 divisors, whose sum is σ = 68229351332. Its totient is φ = 68229351330.

The previous prime is 68229351319. The next prime is 68229351341. The reversal of 68229351331 is 13315392286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68229351331 - 2¹³ = 68229343139 is a prime.

It is a super-2 number, since 2×68229351331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68229351341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34114675665 + 34114675666.

It is an arithmetic number, because the mean of its divisors is an integer number (34114675666).

Almost surely, 2^68229351331 is an apocalyptic number.

68229351331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68229351331 is an equidigital number, since it uses as much as digits as its factorization.

68229351331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The spelling of 68229351331 in words is "sixty-eight billion, two hundred twenty-nine million, three hundred fifty-one thousand, three hundred thirty-one".