8315800819 has 4 divisors (see below), whose sum is σ = 8319284080. Its totient is φ = 8312317560.

The previous prime is 8315800817. The next prime is 8315800861. The reversal of 8315800819 is 9180085138.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8315800819 - 2¹ = 8315800817 is a prime.

It is a super-2 number, since 2×8315800819² (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 (8315800817) 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, 1738047 + ... + 1742824.

It is an arithmetic number, because the mean of its divisors is an integer number (2079821020).

Almost surely, 2^8315800819 is an apocalyptic number.

8315800819 is a deficient number, since it is larger than the sum of its proper divisors (3483261).

8315800819 is a wasteful number, since it uses less digits than its factorization.

8315800819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483260.

The product of its (nonzero) digits is 69120, while the sum is 43.

The square root of 8315800819 is about 91191.0128192466. The cubic root of 8315800819 is about 2025.9778496539.

The spelling of 8315800819 in words is "eight billion, three hundred fifteen million, eight hundred thousand, eight hundred nineteen".