8142169019 has 2 divisors, whose sum is σ = 8142169020. Its totient is φ = 8142169018.

The previous prime is 8142168949. The next prime is 8142169129. The reversal of 8142169019 is 9109612418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8142169019 - 2⁸ = 8142168763 is a prime.

It is a super-2 number, since 2×8142169019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8142129019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4071084509 + 4071084510.

It is an arithmetic number, because the mean of its divisors is an integer number (4071084510).

Almost surely, 2^8142169019 is an apocalyptic number.

8142169019 is a deficient number, since it is larger than the sum of its proper divisors (1).

8142169019 is an equidigital number, since it uses as much as digits as its factorization.

8142169019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 8142169019 is about 90233.9682104251. The cubic root of 8142169019 is about 2011.7779223701. Note that the first 3 decimals are identical.

The spelling of 8142169019 in words is "eight billion, one hundred forty-two million, one hundred sixty-nine thousand, nineteen".