68810616 has 96 divisors (see below), whose sum is σ = 214156800. Its totient is φ = 19552320.

The previous prime is 68810557. The next prime is 68810627. The reversal of 68810616 is 61601886.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156525 + ... + 156963.

It is an arithmetic number, because the mean of its divisors is an integer number (2230800).

Almost surely, 2^68810616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68810616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107078400).

68810616 is an abundant number, since it is smaller than the sum of its proper divisors (145346184).

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

68810616 is a wasteful number, since it uses less digits than its factorization.

68810616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 68810616 is about 8295.2164528721. The cubic root of 68810616 is about 409.7809974561.

The spelling of 68810616 in words is "sixty-eight million, eight hundred ten thousand, six hundred sixteen".