67251968 has 36 divisors (see below), whose sum is σ = 153422640. Its totient is φ = 28821504.

The previous prime is 67251967. The next prime is 67251973. The reversal of 67251968 is 86915276.

It is a super-3 number, since 3×67251968³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67251967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16973 + ... + 20556.

It is an arithmetic number, because the mean of its divisors is an integer number (4261740).

Almost surely, 2^67251968 is an apocalyptic number.

It is an amenable number.

67251968 is an abundant number, since it is smaller than the sum of its proper divisors (86170672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67251968 is an equidigital number, since it uses as much as digits as its factorization.

67251968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37552 (or 37538 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 67251968 is about 8200.7297236283. The cubic root of 67251968 is about 406.6633174797.

The spelling of 67251968 in words is "sixty-seven million, two hundred fifty-one thousand, nine hundred sixty-eight".