68157484 has 18 divisors (see below), whose sum is σ = 125685980. Its totient is φ = 32251032.

The previous prime is 68157461. The next prime is 68157491. The reversal of 68157484 is 48475186.

It is a self number, because there is not a number n which added to its sum of digits gives 68157484.

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 5 ways as a sum of consecutive naturals, for example, 71499 + ... + 72445.

Almost surely, 2^68157484 is an apocalyptic number.

It is an amenable number.

68157484 is a deficient number, since it is larger than the sum of its proper divisors (57528496).

68157484 is an equidigital number, since it uses as much as digits as its factorization.

68157484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 968 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 68157484 is about 8255.7545990660. The cubic root of 68157484 is about 408.4803630271.

The spelling of 68157484 in words is "sixty-eight million, one hundred fifty-seven thousand, four hundred eighty-four".