8251363813 has 16 divisors (see below), whose sum is σ = 10428345216. Its totient is φ = 6341552640.

The previous prime is 8251363811. The next prime is 8251363849. The reversal of 8251363813 is 3183631528.

It is a cyclic number.

It is not a de Polignac number, because 8251363813 - 2¹ = 8251363811 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 (8251363811) 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, 728356 + ... + 739597.

It is an arithmetic number, because the mean of its divisors is an integer number (651771576).

Almost surely, 2^8251363813 is an apocalyptic number.

It is an amenable number.

8251363813 is a deficient number, since it is larger than the sum of its proper divisors (2176981403).

8251363813 is a wasteful number, since it uses less digits than its factorization.

8251363813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468044.

The product of its digits is 103680, while the sum is 40.

The square root of 8251363813 is about 90837.0178561582. The cubic root of 8251363813 is about 2020.7313475232.

The spelling of 8251363813 in words is "eight billion, two hundred fifty-one million, three hundred sixty-three thousand, eight hundred thirteen".