8141805019 has 4 divisors (see below), whose sum is σ = 8620734744. Its totient is φ = 7662875296.

The previous prime is 8141805011. The next prime is 8141805047. The reversal of 8141805019 is 9105081418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9105081418 = 2 ⋅4552540709.

It is a cyclic number.

It is not a de Polignac number, because 8141805019 - 2³ = 8141805011 is a prime.

It is a super-2 number, since 2×8141805019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8141805011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239464837 + ... + 239464870.

It is an arithmetic number, because the mean of its divisors is an integer number (2155183686).

Almost surely, 2^8141805019 is an apocalyptic number.

8141805019 is a deficient number, since it is larger than the sum of its proper divisors (478929725).

8141805019 is a wasteful number, since it uses less digits than its factorization.

8141805019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478929724.

The product of its (nonzero) digits is 11520, while the sum is 37.

The square root of 8141805019 is about 90231.9512090922. The cubic root of 8141805019 is about 2011.7479427224.

The spelling of 8141805019 in words is "eight billion, one hundred forty-one million, eight hundred five thousand, nineteen".