68719423 has 8 divisors (see below), whose sum is σ = 75925728. Its totient is φ = 61864704.

The previous prime is 68719381. The next prime is 68719433. The reversal of 68719423 is 32491786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68719423 - 2¹³ = 68711231 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 (68719433) 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 7 ways as a sum of consecutive naturals, for example, 87486 + ... + 88267.

It is an arithmetic number, because the mean of its divisors is an integer number (9490716).

Almost surely, 2^68719423 is an apocalyptic number.

68719423 is a deficient number, since it is larger than the sum of its proper divisors (7206305).

68719423 is a wasteful number, since it uses less digits than its factorization.

68719423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175793.

The product of its digits is 72576, while the sum is 40.

The square root of 68719423 is about 8289.7179083489. The cubic root of 68719423 is about 409.5998932361.

The spelling of 68719423 in words is "sixty-eight million, seven hundred nineteen thousand, four hundred twenty-three".