68818950 has 96 divisors (see below), whose sum is σ = 199689600. Its totient is φ = 17379360.

The previous prime is 68818949. The next prime is 68818991. The reversal of 68818950 is 5981886.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 68818896 and 68818905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24309 + ... + 26991.

It is an arithmetic number, because the mean of its divisors is an integer number (2080100).

Almost surely, 2^68818950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68818950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99844800).

68818950 is an abundant number, since it is smaller than the sum of its proper divisors (130870650).

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

68818950 is a wasteful number, since it uses less digits than its factorization.

68818950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 68818950 is about 8295.7187753684. The cubic root of 68818950 is about 409.7975403345.

The spelling of 68818950 in words is "sixty-eight million, eight hundred eighteen thousand, nine hundred fifty".