68401019 has 2 divisors, whose sum is σ = 68401020. Its totient is φ = 68401018.

The previous prime is 68400971. The next prime is 68401061. The reversal of 68401019 is 91010486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68401019 is a prime.

It is a super-2 number, since 2×68401019² = 9357398800476722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4029527 and since 68401019 and 4029527 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 68400982 and 68401000.

It is not a weakly prime, because it can be changed into another prime (68404019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34200509 + 34200510.

It is an arithmetic number, because the mean of its divisors is an integer number (34200510).

Almost surely, 2^68401019 is an apocalyptic number.

68401019 is a deficient number, since it is larger than the sum of its proper divisors (1).

68401019 is an equidigital number, since it uses as much as digits as its factorization.

68401019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 68401019 is about 8270.4908560496. The cubic root of 68401019 is about 408.9663014263.

The spelling of 68401019 in words is "sixty-eight million, four hundred one thousand, nineteen".