8191846373 has 2 divisors, whose sum is σ = 8191846374. Its totient is φ = 8191846372.

The previous prime is 8191846331. The next prime is 8191846391. The reversal of 8191846373 is 3736481918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6275333089 + 1916513284 = 79217^2 + 43778^2 .

It is a cyclic number.

It is not a de Polignac number, because 8191846373 - 2¹⁰ = 8191845349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8191806373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095923186 + 4095923187.

It is an arithmetic number, because the mean of its divisors is an integer number (4095923187).

Almost surely, 2^8191846373 is an apocalyptic number.

It is an amenable number.

8191846373 is a deficient number, since it is larger than the sum of its proper divisors (1).

8191846373 is an equidigital number, since it uses as much as digits as its factorization.

8191846373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 8191846373 is about 90508.8193106064. The cubic root of 8191846373 is about 2015.8610783278.

The spelling of 8191846373 in words is "eight billion, one hundred ninety-one million, eight hundred forty-six thousand, three hundred seventy-three".