68850858331 has 2 divisors, whose sum is σ = 68850858332. Its totient is φ = 68850858330.

The previous prime is 68850858289. The next prime is 68850858383. The reversal of 68850858331 is 13385805886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68850858331 - 2³³ = 60260923739 is a prime.

It is a super-2 number, since 2×68850858331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68850858431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34425429165 + 34425429166.

It is an arithmetic number, because the mean of its divisors is an integer number (34425429166).

Almost surely, 2^68850858331 is an apocalyptic number.

68850858331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68850858331 is an equidigital number, since it uses as much as digits as its factorization.

68850858331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 68850858331 in words is "sixty-eight billion, eight hundred fifty million, eight hundred fifty-eight thousand, three hundred thirty-one".