83212415872 has 32 divisors (see below), whose sum is σ = 165790861200. Its totient is φ = 41602160640.

The previous prime is 83212415863. The next prime is 83212415873. The reversal of 83212415872 is 27851421238.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83212415873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628472 + ... + 1678792.

Almost surely, 2^83212415872 is an apocalyptic number.

It is an amenable number.

83212415872 is a deficient number, since it is larger than the sum of its proper divisors (82578445328).

83212415872 is a wasteful number, since it uses less digits than its factorization.

83212415872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63254 (or 63242 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The spelling of 83212415872 in words is "eighty-three billion, two hundred twelve million, four hundred fifteen thousand, eight hundred seventy-two".