68225421073999 has 4 divisors (see below), whose sum is σ = 77971909798864. Its totient is φ = 58478932349136.

The previous prime is 68225421073969. The next prime is 68225421074023. The reversal of 68225421073999 is 99937012452286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68225421073999 - 2¹⁹ = 68225420549711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68225421073969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4873244362422 + ... + 4873244362435.

It is an arithmetic number, because the mean of its divisors is an integer number (19492977449716).

It is a 2-persistent number, because it is pandigital, and so is 2⋅68225421073999 = 136450842147998, but 3⋅68225421073999 = 204676263221997 is not.

Almost surely, 2^{68225421073999} is an apocalyptic number.

68225421073999 is a deficient number, since it is larger than the sum of its proper divisors (9746488724865).

68225421073999 is an equidigital number, since it uses as much as digits as its factorization.

68225421073999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746488724864.

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 68225421073999 in words is "sixty-eight trillion, two hundred twenty-five billion, four hundred twenty-one million, seventy-three thousand, nine hundred ninety-nine".