8513436819 has 16 divisors (see below), whose sum is σ = 11661162752. Its totient is φ = 5520750048.

The previous prime is 8513436797. The next prime is 8513436847. The reversal of 8513436819 is 9186343158.

It is not a de Polignac number, because 8513436819 - 2¹¹ = 8513434771 is a prime.

It is a super-2 number, since 2×8513436819² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8513436859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536412 + ... + 552054.

It is an arithmetic number, because the mean of its divisors is an integer number (728822672).

Almost surely, 2^8513436819 is an apocalyptic number.

8513436819 is a deficient number, since it is larger than the sum of its proper divisors (3147725933).

8513436819 is a wasteful number, since it uses less digits than its factorization.

8513436819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20586.

The product of its digits is 622080, while the sum is 48.

The square root of 8513436819 is about 92268.2871792904. The cubic root of 8513436819 is about 2041.9023663854.

The spelling of 8513436819 in words is "eight billion, five hundred thirteen million, four hundred thirty-six thousand, eight hundred nineteen".