68043768 has 48 divisors (see below), whose sum is σ = 183587880. Its totient is φ = 20891712.

The previous prime is 68043763. The next prime is 68043797. The reversal of 68043768 is 86734086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68043763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145471 + ... + 145937.

Almost surely, 2^68043768 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 68043768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91793940).

68043768 is an abundant number, since it is smaller than the sum of its proper divisors (115544112).

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

68043768 is a wasteful number, since it uses less digits than its factorization.

68043768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 68043768 is about 8248.8646491502. The cubic root of 68043768 is about 408.2530629201.

The spelling of 68043768 in words is "sixty-eight million, forty-three thousand, seven hundred sixty-eight".