68378522 has 32 divisors (see below), whose sum is σ = 111974400. Its totient is φ = 31195648.

The previous prime is 68378521. The next prime is 68378593. The reversal of 68378522 is 22587386.

It is a self number, because there is not a number n which added to its sum of digits gives 68378522.

It is not an unprimeable number, because it can be changed into a prime (68378521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178343 + ... + 178725.

It is an arithmetic number, because the mean of its divisors is an integer number (3499200).

Almost surely, 2^68378522 is an apocalyptic number.

68378522 is a deficient number, since it is larger than the sum of its proper divisors (43595878).

68378522 is a wasteful number, since it uses less digits than its factorization.

68378522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its digits is 161280, while the sum is 41.

The square root of 68378522 is about 8269.1306677304. The cubic root of 68378522 is about 408.9214603606.

The spelling of 68378522 in words is "sixty-eight million, three hundred seventy-eight thousand, five hundred twenty-two".