83212415871 has 24 divisors (see below), whose sum is σ = 121087088640. Its totient is φ = 50804391456.

The previous prime is 83212415863. The next prime is 83212415873. The reversal of 83212415871 is 17851421238.

It is not a de Polignac number, because 83212415871 - 2³ = 83212415863 is a prime.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 581781 + ... + 710558.

It is an arithmetic number, because the mean of its divisors is an integer number (5045295360).

Almost surely, 2^83212415871 is an apocalyptic number.

83212415871 is a deficient number, since it is larger than the sum of its proper divisors (37874672769).

83212415871 is a wasteful number, since it uses less digits than its factorization.

83212415871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292495 (or 1292482 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The spelling of 83212415871 in words is "eighty-three billion, two hundred twelve million, four hundred fifteen thousand, eight hundred seventy-one".