68401811 has 2 divisors, whose sum is σ = 68401812. Its totient is φ = 68401810.

The previous prime is 68401799. The next prime is 68401847. The reversal of 68401811 is 11810486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68401811 - 2¹⁸ = 68139667 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68401871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34200905 + 34200906.

It is an arithmetic number, because the mean of its divisors is an integer number (34200906).

Almost surely, 2^68401811 is an apocalyptic number.

68401811 is a deficient number, since it is larger than the sum of its proper divisors (1).

68401811 is an equidigital number, since it uses as much as digits as its factorization.

68401811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 68401811 is about 8270.5387369868. The cubic root of 68401811 is about 408.9678798631.

The spelling of 68401811 in words is "sixty-eight million, four hundred one thousand, eight hundred eleven".