68071248331 has 2 divisors, whose sum is σ = 68071248332. Its totient is φ = 68071248330.

The previous prime is 68071248313. The next prime is 68071248379. The reversal of 68071248331 is 13384217086.

Together with previous prime (68071248313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68071248331 - 2²¹ = 68069151179 is a prime.

It is a super-2 number, since 2×68071248331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68071258331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34035624165 + 34035624166.

It is an arithmetic number, because the mean of its divisors is an integer number (34035624166).

Almost surely, 2^68071248331 is an apocalyptic number.

68071248331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68071248331 is an equidigital number, since it uses as much as digits as its factorization.

68071248331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 68071248331 in words is "sixty-eight billion, seventy-one million, two hundred forty-eight thousand, three hundred thirty-one".