68178674 has 4 divisors (see below), whose sum is σ = 102268014. Its totient is φ = 34089336.

The previous prime is 68178661. The next prime is 68178697. The reversal of 68178674 is 47687186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47687186 = 2 ⋅23843593.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 625 = 8257^2 + 25^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17044667 + ... + 17044670.

Almost surely, 2^68178674 is an apocalyptic number.

68178674 is a deficient number, since it is larger than the sum of its proper divisors (34089340).

68178674 is a wasteful number, since it uses less digits than its factorization.

68178674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34089339.

The product of its digits is 451584, while the sum is 47.

The square root of 68178674 is about 8257.0378465888. The cubic root of 68178674 is about 408.5226904993.

The spelling of 68178674 in words is "sixty-eight million, one hundred seventy-eight thousand, six hundred seventy-four".