68158674 has 12 divisors (see below), whose sum is σ = 147677166. Its totient is φ = 22719552.

The previous prime is 68158669. The next prime is 68158691. The reversal of 68158674 is 47685186.

It is a happy number.

68158674 is a `hidden beast` number, since 68 + 1 + 586 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61732449 + 6426225 = 7857^2 + 2535^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1893279 + ... + 1893314.

Almost surely, 2^68158674 is an apocalyptic number.

68158674 is an abundant number, since it is smaller than the sum of its proper divisors (79518492).

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

68158674 is a wasteful number, since it uses less digits than its factorization.

68158674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786601 (or 3786598 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 68158674 is about 8255.8266696921. The cubic root of 68158674 is about 408.4827403097.

The spelling of 68158674 in words is "sixty-eight million, one hundred fifty-eight thousand, six hundred seventy-four".