83905252080 has 80 divisors (see below), whose sum is σ = 280114467360. Its totient is φ = 20653599744.

The previous prime is 83905252027. The next prime is 83905252111. The reversal of 83905252080 is 8025250938.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13443235 + ... + 13449474.

It is an arithmetic number, because the mean of its divisors is an integer number (3501430842).

Almost surely, 2^83905252080 is an apocalyptic number.

83905252080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83905252080 is an abundant number, since it is smaller than the sum of its proper divisors (196209215280).

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

83905252080 is a wasteful number, since it uses less digits than its factorization.

83905252080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26892738 (or 26892732 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 83905252080 in words is "eighty-three billion, nine hundred five million, two hundred fifty-two thousand, eighty".