68379780 has 192 divisors, whose sum is σ = 236984832. Its totient is φ = 14376960.

The previous prime is 68379749. The next prime is 68379781. The reversal of 68379780 is 8797386.

68379780 is nontrivially palindromic in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68379781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 435462 + ... + 435618.

It is an arithmetic number, because the mean of its divisors is an integer number (1234296).

Almost surely, 2^68379780 is an apocalyptic number.

68379780 is a gapful number since it is divisible by the number (60) 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 68379780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118492416).

68379780 is an abundant number, since it is smaller than the sum of its proper divisors (168605052).

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

68379780 is a wasteful number, since it uses less digits than its factorization.

68379780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 68379780 is about 8269.2067334177. The cubic root of 68379780 is about 408.9239680684.

The spelling of 68379780 in words is "sixty-eight million, three hundred seventy-nine thousand, seven hundred eighty".