68131426 has 16 divisors (see below), whose sum is σ = 111624480. Its totient is φ = 30930880.

The previous prime is 68131421. The next prime is 68131433. The reversal of 68131426 is 62413186.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68131421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24810 + ... + 27418.

It is an arithmetic number, because the mean of its divisors is an integer number (6976530).

Almost surely, 2^68131426 is an apocalyptic number.

68131426 is a deficient number, since it is larger than the sum of its proper divisors (43493054).

68131426 is a wasteful number, since it uses less digits than its factorization.

68131426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809.

The product of its digits is 6912, while the sum is 31.

The square root of 68131426 is about 8254.1762762858. The cubic root of 68131426 is about 408.4282995927.

The spelling of 68131426 in words is "sixty-eight million, one hundred thirty-one thousand, four hundred twenty-six".