8162742859 has 2 divisors, whose sum is σ = 8162742860. Its totient is φ = 8162742858.

The previous prime is 8162742829. The next prime is 8162742869. The reversal of 8162742859 is 9582472618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8162742859 - 2⁹ = 8162742347 is a prime.

It is not a weakly prime, because it can be changed into another prime (8162742829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4081371429 + 4081371430.

It is an arithmetic number, because the mean of its divisors is an integer number (4081371430).

Almost surely, 2^8162742859 is an apocalyptic number.

8162742859 is a deficient number, since it is larger than the sum of its proper divisors (1).

8162742859 is an equidigital number, since it uses as much as digits as its factorization.

8162742859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The square root of 8162742859 is about 90347.8990292525. The cubic root of 8162742859 is about 2013.4709677197.

The spelling of 8162742859 in words is "eight billion, one hundred sixty-two million, seven hundred forty-two thousand, eight hundred fifty-nine".