68818734 has 40 divisors (see below), whose sum is σ = 155122968. Its totient is φ = 22803120.

The previous prime is 68818733. The next prime is 68818747. The reversal of 68818734 is 43781886.

It is a self number, because there is not a number n which added to its sum of digits gives 68818734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68818733) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28149 + ... + 30495.

Almost surely, 2^68818734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68818734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77561484).

68818734 is an abundant number, since it is smaller than the sum of its proper divisors (86304234).

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

68818734 is a wasteful number, since it uses less digits than its factorization.

68818734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542 (or 2533 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 68818734 is about 8295.7057565948. The cubic root of 68818734 is about 409.7971115943.

The spelling of 68818734 in words is "sixty-eight million, eight hundred eighteen thousand, seven hundred thirty-four".