68966378 has 8 divisors (see below), whose sum is σ = 111407268. Its totient is φ = 31830624.

The previous prime is 68966363. The next prime is 68966411. The reversal of 68966378 is 87366986.

It can be written as a sum of positive squares in 2 ways, for example, as 68939809 + 26569 = 8303^2 + 163^2 .

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

It is a super-2 number, since 2×68966378² = 9512722588877768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326251 + ... + 1326302.

Almost surely, 2^68966378 is an apocalyptic number.

68966378 is a deficient number, since it is larger than the sum of its proper divisors (42440890).

68966378 is a wasteful number, since it uses less digits than its factorization.

68966378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652568.

The product of its digits is 2612736, while the sum is 53.

The square root of 68966378 is about 8304.5998097440. The cubic root of 68966378 is about 410.0899624124.

The spelling of 68966378 in words is "sixty-eight million, nine hundred sixty-six thousand, three hundred seventy-eight".