83475047321 has 4 divisors (see below), whose sum is σ = 83498361444. Its totient is φ = 83451733200.

The previous prime is 83475047311. The next prime is 83475047323. The reversal of 83475047321 is 12374057438.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33659039296 + 49816008025 = 183464^2 + 223195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83475047321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83475047323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11651690 + ... + 11658851.

It is an arithmetic number, because the mean of its divisors is an integer number (20874590361).

Almost surely, 2^83475047321 is an apocalyptic number.

It is an amenable number.

83475047321 is a deficient number, since it is larger than the sum of its proper divisors (23314123).

83475047321 is a wasteful number, since it uses less digits than its factorization.

83475047321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23314122.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 83475047321 in words is "eighty-three billion, four hundred seventy-five million, forty-seven thousand, three hundred twenty-one".