68561610 has 48 divisors (see below), whose sum is σ = 178192224. Its totient is φ = 16875456.

The previous prime is 68561609. The next prime is 68561627. The reversal of 68561610 is 1616586.

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 23 ways as a sum of consecutive naturals, for example, 1692 + ... + 11831.

It is an arithmetic number, because the mean of its divisors is an integer number (3712338).

Almost surely, 2^68561610 is an apocalyptic number.

68561610 is an abundant number, since it is smaller than the sum of its proper divisors (109630614).

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

68561610 is a wasteful number, since it uses less digits than its factorization.

68561610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 68561610 is about 8280.1938383108. The cubic root of 68561610 is about 409.2861064878.

The spelling of 68561610 in words is "sixty-eight million, five hundred sixty-one thousand, six hundred ten".