8063437813 has 4 divisors (see below), whose sum is σ = 8067977260. Its totient is φ = 8058898368.

The previous prime is 8063437771. The next prime is 8063437817. The reversal of 8063437813 is 3187343608.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6097579569 + 1965858244 = 78087^2 + 44338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8063437813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8063437813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8063437817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267058 + ... + 2270611.

It is an arithmetic number, because the mean of its divisors is an integer number (2016994315).

Almost surely, 2^8063437813 is an apocalyptic number.

It is an amenable number.

8063437813 is a deficient number, since it is larger than the sum of its proper divisors (4539447).

8063437813 is a wasteful number, since it uses less digits than its factorization.

8063437813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539446.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 8063437813 is about 89796.6470031036. The cubic root of 8063437813 is about 2005.2725721931.

The spelling of 8063437813 in words is "eight billion, sixty-three million, four hundred thirty-seven thousand, eight hundred thirteen".