83550486840 has 128 divisors (see below), whose sum is σ = 270403479360. Its totient is φ = 20573855744.

The previous prime is 83550486839. The next prime is 83550486869. The reversal of 83550486840 is 4868405538.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 278259 + ... + 494498.

Almost surely, 2^83550486840 is an apocalyptic number.

It is an amenable number.

83550486840 is an abundant number, since it is smaller than the sum of its proper divisors (186852992520).

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

83550486840 is a wasteful number, since it uses less digits than its factorization.

83550486840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772841 (or 772837 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 83550486840 in words is "eighty-three billion, five hundred fifty million, four hundred eighty-six thousand, eight hundred forty".