68465329819 has 2 divisors, whose sum is σ = 68465329820. Its totient is φ = 68465329818.

The previous prime is 68465329811. The next prime is 68465329859. The reversal of 68465329819 is 91892356486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68465329819 - 2³ = 68465329811 is a prime.

It is a super-2 number, since 2×68465329819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68465329811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34232664909 + 34232664910.

It is an arithmetic number, because the mean of its divisors is an integer number (34232664910).

Almost surely, 2^68465329819 is an apocalyptic number.

68465329819 is a deficient number, since it is larger than the sum of its proper divisors (1).

68465329819 is an equidigital number, since it uses as much as digits as its factorization.

68465329819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 61.

The spelling of 68465329819 in words is "sixty-eight billion, four hundred sixty-five million, three hundred twenty-nine thousand, eight hundred nineteen".