68978124 has 36 divisors (see below), whose sum is σ = 180376560. Its totient is φ = 22199520.

The previous prime is 68978089. The next prime is 68978141. The reversal of 68978124 is 42187986.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 68978124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31992 + ... + 34079.

It is an arithmetic number, because the mean of its divisors is an integer number (5010460).

Almost surely, 2^68978124 is an apocalyptic number.

It is an amenable number.

68978124 is an abundant number, since it is smaller than the sum of its proper divisors (111398436).

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

68978124 is a wasteful number, since it uses less digits than its factorization.

68978124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66110 (or 66105 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 68978124 is about 8305.3069780713. The cubic root of 68978124 is about 410.1132425643.

The spelling of 68978124 in words is "sixty-eight million, nine hundred seventy-eight thousand, one hundred twenty-four".