68067378 has 40 divisors (see below), whose sum is σ = 154267740. Its totient is φ = 22429440.

The previous prime is 68067361. The next prime is 68067397. The reversal of 68067378 is 87376086.

It can be written as a sum of positive squares in 2 ways, for example, as 66634569 + 1432809 = 8163^2 + 1197^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12058 + ... + 16778.

Almost surely, 2^68067378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68067378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77133870).

68067378 is an abundant number, since it is smaller than the sum of its proper divisors (86200362).

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

68067378 is a wasteful number, since it uses less digits than its factorization.

68067378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 4815 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 68067378 is about 8250.2956310668. The cubic root of 68067378 is about 408.3002763558.

The spelling of 68067378 in words is "sixty-eight million, sixty-seven thousand, three hundred seventy-eight".