68694516 has 72 divisors (see below), whose sum is σ = 194096448. Its totient is φ = 20304000.

The previous prime is 68694469. The next prime is 68694517. The reversal of 68694516 is 61549686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68694517) by changing a digit.

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, 14121 + ... + 18351.

It is an arithmetic number, because the mean of its divisors is an integer number (2695784).

Almost surely, 2^68694516 is an apocalyptic number.

68694516 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68694516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97048224).

68694516 is an abundant number, since it is smaller than the sum of its proper divisors (125401932).

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

68694516 is a wasteful number, since it uses less digits than its factorization.

68694516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293 (or 4288 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 68694516 is about 8288.2154894766. The cubic root of 68694516 is about 409.5504014676.

The spelling of 68694516 in words is "sixty-eight million, six hundred ninety-four thousand, five hundred sixteen".