68843649419220 has 96 divisors (see below), whose sum is σ = 211108557421440. Its totient is φ = 16658906549760.

The previous prime is 68843649419213. The next prime is 68843649419263. The reversal of 68843649419220 is 2291494634886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747929311 + ... + 748021350.

It is an arithmetic number, because the mean of its divisors is an integer number (2199047473140).

Almost surely, 2^{68843649419220} is an apocalyptic number.

68843649419220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68843649419220 is an abundant number, since it is smaller than the sum of its proper divisors (142264908002220).

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

68843649419220 is a wasteful number, since it uses less digits than its factorization.

68843649419220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495950745 (or 1495950743 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 66.

The spelling of 68843649419220 in words is "sixty-eight trillion, eight hundred forty-three billion, six hundred forty-nine million, four hundred nineteen thousand, two hundred twenty".