8186975941 has 2 divisors, whose sum is σ = 8186975942. Its totient is φ = 8186975940.

The previous prime is 8186975921. The next prime is 8186975947. The reversal of 8186975941 is 1495796818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8160412225 + 26563716 = 90335^2 + 5154^2 .

It is a cyclic number.

It is not a de Polignac number, because 8186975941 - 2⁷ = 8186975813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8186975947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4093487970 + 4093487971.

It is an arithmetic number, because the mean of its divisors is an integer number (4093487971).

Almost surely, 2^8186975941 is an apocalyptic number.

It is an amenable number.

8186975941 is a deficient number, since it is larger than the sum of its proper divisors (1).

8186975941 is an equidigital number, since it uses as much as digits as its factorization.

8186975941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 58.

The square root of 8186975941 is about 90481.9094681362. The cubic root of 8186975941 is about 2015.4614915406.

The spelling of 8186975941 in words is "eight billion, one hundred eighty-six million, nine hundred seventy-five thousand, nine hundred forty-one".