68011923 has 16 divisors (see below), whose sum is σ = 106981376. Its totient is φ = 37609920.

The previous prime is 68011921. The next prime is 68011949. The reversal of 68011923 is 32911086.

It is not a de Polignac number, because 68011923 - 2¹ = 68011921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68011921) 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, 51586 + ... + 52887.

It is an arithmetic number, because the mean of its divisors is an integer number (6686336).

Almost surely, 2^68011923 is an apocalyptic number.

68011923 is a deficient number, since it is larger than the sum of its proper divisors (38969453).

68011923 is a wasteful number, since it uses less digits than its factorization.

68011923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104514.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 68011923 is about 8246.9341576128. The cubic root of 68011923 is about 408.1893644710.

The spelling of 68011923 in words is "sixty-eight million, eleven thousand, nine hundred twenty-three".