68211423 has 16 divisors (see below), whose sum is σ = 115490560. Its totient is φ = 38977848.

The previous prime is 68211397. The next prime is 68211431. The reversal of 68211423 is 32411286.

It is not a de Polignac number, because 68211423 - 2⁹ = 68210911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68211443) 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 in 15 ways as a sum of consecutive naturals, for example, 180265 + ... + 180642.

It is an arithmetic number, because the mean of its divisors is an integer number (7218160).

Almost surely, 2^68211423 is an apocalyptic number.

68211423 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

68211423 is a deficient number, since it is larger than the sum of its proper divisors (47279137).

68211423 is a wasteful number, since it uses less digits than its factorization.

68211423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360923 (or 360917 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 68211423 is about 8259.0207046598. The cubic root of 68211423 is about 408.5880900701.

The spelling of 68211423 in words is "sixty-eight million, two hundred eleven thousand, four hundred twenty-three".