68158784 has 28 divisors (see below), whose sum is σ = 138403584. Its totient is φ = 33285504.

The previous prime is 68158759. The next prime is 68158807. The reversal of 68158784 is 48785186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9632 + ... + 15135.

Almost surely, 2^68158784 is an apocalyptic number.

68158784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68158784 is an abundant number, since it is smaller than the sum of its proper divisors (70244800).

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

68158784 is a wasteful number, since it uses less digits than its factorization.

68158784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24822 (or 24812 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 68158784 is about 8255.8333316510. The cubic root of 68158784 is about 408.4829600571.

The spelling of 68158784 in words is "sixty-eight million, one hundred fifty-eight thousand, seven hundred eighty-four".