68509760 has 56 divisors (see below), whose sum is σ = 177978816. Its totient is φ = 24911360.

The previous prime is 68509759. The next prime is 68509787. The reversal of 68509760 is 6790586.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 6212 + ... + 13251.

Almost surely, 2^68509760 is an apocalyptic number.

It is an amenable number.

68509760 is an abundant number, since it is smaller than the sum of its proper divisors (109469056).

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

68509760 is a wasteful number, since it uses less digits than its factorization.

68509760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491 (or 19481 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 68509760 is about 8277.0622807854. The cubic root of 68509760 is about 409.1829057000.

The spelling of 68509760 in words is "sixty-eight million, five hundred nine thousand, seven hundred sixty".