8367019961 has 2 divisors, whose sum is σ = 8367019962. Its totient is φ = 8367019960.

The previous prime is 8367019957. The next prime is 8367019963. The reversal of 8367019961 is 1699107638.

8367019961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6384010000 + 1983009961 = 79900^2 + 44531^2 .

It is a cyclic number.

It is not a de Polignac number, because 8367019961 - 2² = 8367019957 is a prime.

Together with 8367019963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8367019963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4183509980 + 4183509981.

It is an arithmetic number, because the mean of its divisors is an integer number (4183509981).

Almost surely, 2^8367019961 is an apocalyptic number.

It is an amenable number.

8367019961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8367019961 is an equidigital number, since it uses as much as digits as its factorization.

8367019961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 8367019961 is about 91471.4160872127. The cubic root of 8367019961 is about 2030.1288440146.

The spelling of 8367019961 in words is "eight billion, three hundred sixty-seven million, nineteen thousand, nine hundred sixty-one".