68426331 has 16 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 43536960.

The previous prime is 68426329. The next prime is 68426333. The reversal of 68426331 is 13362486.

It is an interprime number because it is at equal distance from previous prime (68426329) and next prime (68426333).

It is not a de Polignac number, because 68426331 - 2¹ = 68426329 is a prime.

It is a super-3 number, since 3×68426331³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 68426292 and 68426301.

It is not an unprimeable number, because it can be changed into a prime (68426333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (5967360).

Almost surely, 2^68426331 is an apocalyptic number.

68426331 is a deficient number, since it is larger than the sum of its proper divisors (27051429).

68426331 is a wasteful number, since it uses less digits than its factorization.

68426331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186.

The product of its digits is 20736, while the sum is 33.

The square root of 68426331 is about 8272.0209743448. The cubic root of 68426331 is about 409.0167416026.

The spelling of 68426331 in words is "sixty-eight million, four hundred twenty-six thousand, three hundred thirty-one".