8213735481 has 16 divisors (see below), whose sum is σ = 12633145344. Its totient is φ = 4649696784.

The previous prime is 8213735471. The next prime is 8213735503. The reversal of 8213735481 is 1845373128.

It is not a de Polignac number, because 8213735481 - 2¹⁰ = 8213734457 is a prime.

It is a super-2 number, since 2×8213735481² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8213735471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1825465 + ... + 1829958.

It is an arithmetic number, because the mean of its divisors is an integer number (789571584).

Almost surely, 2^8213735481 is an apocalyptic number.

It is an amenable number.

8213735481 is a deficient number, since it is larger than the sum of its proper divisors (4419409863).

8213735481 is a wasteful number, since it uses less digits than its factorization.

8213735481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655540.

The product of its digits is 161280, while the sum is 42.

The square root of 8213735481 is about 90629.6611546132. The cubic root of 8213735481 is about 2017.6549822976.

The spelling of 8213735481 in words is "eight billion, two hundred thirteen million, seven hundred thirty-five thousand, four hundred eighty-one".