68143748 has 24 divisors (see below), whose sum is σ = 122051160. Its totient is φ = 33281280.

The previous prime is 68143723. The next prime is 68143781. The reversal of 68143748 is 84734186.

It can be written as a sum of positive squares in 4 ways, for example, as 35904064 + 32239684 = 5992^2 + 5678^2 .

It is a super-3 number, since 3×68143748³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30758 + ... + 32898.

It is an arithmetic number, because the mean of its divisors is an integer number (5085465).

Almost surely, 2^68143748 is an apocalyptic number.

It is an amenable number.

68143748 is a deficient number, since it is larger than the sum of its proper divisors (53907412).

68143748 is a wasteful number, since it uses less digits than its factorization.

68143748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2325 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 68143748 is about 8254.9226525752. The cubic root of 68143748 is about 408.4529203903.

The spelling of 68143748 in words is "sixty-eight million, one hundred forty-three thousand, seven hundred forty-eight".