68774378 has 8 divisors (see below), whose sum is σ = 103221540. Its totient is φ = 34367200.

The previous prime is 68774371. The next prime is 68774383. The reversal of 68774378 is 87347786.

It can be written as a sum of positive squares in 2 ways, for example, as 68773849 + 529 = 8293^2 + 23^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68774371) 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 3 ways as a sum of consecutive naturals, for example, 5243 + ... + 12846.

Almost surely, 2^68774378 is an apocalyptic number.

68774378 is a deficient number, since it is larger than the sum of its proper divisors (34447162).

68774378 is a wasteful number, since it uses less digits than its factorization.

68774378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19992.

The product of its digits is 1580544, while the sum is 50.

The square root of 68774378 is about 8293.0318943074. The cubic root of 68774378 is about 409.7090499758.

The spelling of 68774378 in words is "sixty-eight million, seven hundred seventy-four thousand, three hundred seventy-eight".