8310013681 has 4 divisors (see below), whose sum is σ = 8310204532. Its totient is φ = 8309822832.

The previous prime is 8310013639. The next prime is 8310013697. The reversal of 8310013681 is 1863100138.

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 2267283456 + 6042730225 = 47616^2 + 77735^2 .

It is a cyclic number.

It is not a de Polignac number, because 8310013681 - 2¹³ = 8310005489 is a prime.

It is a super-2 number, since 2×8310013681² (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 (8310013381) 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, 5395 + ... + 129031.

It is an arithmetic number, because the mean of its divisors is an integer number (2077551133).

Almost surely, 2^8310013681 is an apocalyptic number.

It is an amenable number.

8310013681 is a deficient number, since it is larger than the sum of its proper divisors (190851).

8310013681 is a wasteful number, since it uses less digits than its factorization.

8310013681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190850.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 8310013681 is about 91159.2764396471. The cubic root of 8310013681 is about 2025.5077672766.

The spelling of 8310013681 in words is "eight billion, three hundred ten million, thirteen thousand, six hundred eighty-one".