68460505819 has 2 divisors, whose sum is σ = 68460505820. Its totient is φ = 68460505818.

The previous prime is 68460505807. The next prime is 68460505853. The reversal of 68460505819 is 91850506486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68460505819 - 2⁷ = 68460505691 is a prime.

It is a super-2 number, since 2×68460505819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68460502819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34230252909 + 34230252910.

It is an arithmetic number, because the mean of its divisors is an integer number (34230252910).

Almost surely, 2^68460505819 is an apocalyptic number.

68460505819 is a deficient number, since it is larger than the sum of its proper divisors (1).

68460505819 is an equidigital number, since it uses as much as digits as its factorization.

68460505819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 68460505819 in words is "sixty-eight billion, four hundred sixty million, five hundred five thousand, eight hundred nineteen".