83189312315 has 4 divisors (see below), whose sum is σ = 99827174784. Its totient is φ = 66551449848.

The previous prime is 83189312291. The next prime is 83189312317. The reversal of 83189312315 is 51321398138.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83189312315 - 2²² = 83185118011 is a prime.

It is a super-2 number, since 2×83189312315² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83189312317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8318931227 + ... + 8318931236.

It is an arithmetic number, because the mean of its divisors is an integer number (24956793696).

Almost surely, 2^83189312315 is an apocalyptic number.

83189312315 is a deficient number, since it is larger than the sum of its proper divisors (16637862469).

83189312315 is a wasteful number, since it uses less digits than its factorization.

83189312315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16637862468.

The product of its digits is 155520, while the sum is 44.

The spelling of 83189312315 in words is "eighty-three billion, one hundred eighty-nine million, three hundred twelve thousand, three hundred fifteen".