68820469340 has 96 divisors (see below), whose sum is σ = 170818142208. Its totient is φ = 22791456000.

The previous prime is 68820469339. The next prime is 68820469369. The reversal of 68820469340 is 4396402886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2333285 + ... + 2362595.

It is an arithmetic number, because the mean of its divisors is an integer number (1779355648).

Almost surely, 2^68820469340 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 68820469340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85409071104).

68820469340 is an abundant number, since it is smaller than the sum of its proper divisors (101997672868).

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

68820469340 is a wasteful number, since it uses less digits than its factorization.

68820469340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29899 (or 29897 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 68820469340 in words is "sixty-eight billion, eight hundred twenty million, four hundred sixty-nine thousand, three hundred forty".