8190862819 has 4 divisors (see below), whose sum is σ = 8365136544. Its totient is φ = 8016589096.

The previous prime is 8190862721. The next prime is 8190862831. The reversal of 8190862819 is 9182680918.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9182680918 = 2 ⋅4591340459.

It is a cyclic number.

It is not a de Polignac number, because 8190862819 - 2¹¹ = 8190860771 is a prime.

It is a super-2 number, since 2×8190862819² (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 (8190862859) 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, 87136792 + ... + 87136885.

It is an arithmetic number, because the mean of its divisors is an integer number (2091284136).

Almost surely, 2^8190862819 is an apocalyptic number.

8190862819 is a deficient number, since it is larger than the sum of its proper divisors (174273725).

8190862819 is a wasteful number, since it uses less digits than its factorization.

8190862819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174273724.

The product of its (nonzero) digits is 497664, while the sum is 52.

The square root of 8190862819 is about 90503.3856770011. The cubic root of 8190862819 is about 2015.7803969815.

The spelling of 8190862819 in words is "eight billion, one hundred ninety million, eight hundred sixty-two thousand, eight hundred nineteen".