8351864813 has 4 divisors (see below), whose sum is σ = 8407175328. Its totient is φ = 8296554300.

The previous prime is 8351864749. The next prime is 8351864821. The reversal of 8351864813 is 3184681538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8351864813 - 2⁶ = 8351864749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8351866813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27655031 + ... + 27655332.

It is an arithmetic number, because the mean of its divisors is an integer number (2101793832).

Almost surely, 2^8351864813 is an apocalyptic number.

It is an amenable number.

8351864813 is a deficient number, since it is larger than the sum of its proper divisors (55310515).

8351864813 is a wasteful number, since it uses less digits than its factorization.

8351864813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55310514.

The product of its digits is 552960, while the sum is 47.

The square root of 8351864813 is about 91388.5376455932. The cubic root of 8351864813 is about 2028.9023819474.

The spelling of 8351864813 in words is "eight billion, three hundred fifty-one million, eight hundred sixty-four thousand, eight hundred thirteen".