68648158 has 4 divisors (see below), whose sum is σ = 102972240. Its totient is φ = 34324078.

The previous prime is 68648147. The next prime is 68648171. The reversal of 68648158 is 85184686.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17162038 + ... + 17162041.

It is an arithmetic number, because the mean of its divisors is an integer number (25743060).

Almost surely, 2^68648158 is an apocalyptic number.

68648158 is a deficient number, since it is larger than the sum of its proper divisors (34324082).

68648158 is a wasteful number, since it uses less digits than its factorization.

68648158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34324081.

The product of its digits is 368640, while the sum is 46.

The square root of 68648158 is about 8285.4183961946. The cubic root of 68648158 is about 409.4582533551.

The spelling of 68648158 in words is "sixty-eight million, six hundred forty-eight thousand, one hundred fifty-eight".