83940385828 has 24 divisors (see below), whose sum is σ = 161874308288. Its totient is φ = 37840745376.

The previous prime is 83940385819. The next prime is 83940385843. The reversal of 83940385828 is 82858304938.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18767976 + ... + 18772447.

Almost surely, 2^83940385828 is an apocalyptic number.

It is an amenable number.

83940385828 is a deficient number, since it is larger than the sum of its proper divisors (77933922460).

83940385828 is a wasteful number, since it uses less digits than its factorization.

83940385828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37540483 (or 37540481 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 83940385828 in words is "eighty-three billion, nine hundred forty million, three hundred eighty-five thousand, eight hundred twenty-eight".