68143782 has 16 divisors (see below), whose sum is σ = 155757312. Its totient is φ = 19469640.

The previous prime is 68143781. The next prime is 68143793. The reversal of 68143782 is 28734186.

It is a self number, because there is not a number n which added to its sum of digits gives 68143782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68143781) 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 7 ways as a sum of consecutive naturals, for example, 811194 + ... + 811277.

It is an arithmetic number, because the mean of its divisors is an integer number (9734832).

Almost surely, 2^68143782 is an apocalyptic number.

68143782 is an abundant number, since it is smaller than the sum of its proper divisors (87613530).

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

68143782 is a wasteful number, since it uses less digits than its factorization.

68143782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622483.

The product of its digits is 64512, while the sum is 39.

The square root of 68143782 is about 8254.9247119523. The cubic root of 68143782 is about 408.4529883222.

The spelling of 68143782 in words is "sixty-eight million, one hundred forty-three thousand, seven hundred eighty-two".