8162931949 has 2 divisors, whose sum is σ = 8162931950. Its totient is φ = 8162931948.

The previous prime is 8162931947. The next prime is 8162932013. The reversal of 8162931949 is 9491392618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6216534025 + 1946397924 = 78845^2 + 44118^2 .

It is a cyclic number.

It is not a de Polignac number, because 8162931949 - 2¹ = 8162931947 is a prime.

Together with 8162931947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8162931896 and 8162931905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8162931947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4081465974 + 4081465975.

It is an arithmetic number, because the mean of its divisors is an integer number (4081465975).

Almost surely, 2^8162931949 is an apocalyptic number.

It is an amenable number.

8162931949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8162931949 is an equidigital number, since it uses as much as digits as its factorization.

8162931949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 8162931949 is about 90348.9454780741. The cubic root of 8162931949 is about 2013.4865149564.

The spelling of 8162931949 in words is "eight billion, one hundred sixty-two million, nine hundred thirty-one thousand, nine hundred forty-nine".