8453652481 has 4 divisors (see below), whose sum is σ = 8613155412. Its totient is φ = 8294149552.

The previous prime is 8453652479. The next prime is 8453652497. The reversal of 8453652481 is 1842563548.

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 7777652481 + 676000000 = 88191^2 + 26000^2 .

It is a cyclic number.

It is not a de Polignac number, because 8453652481 - 2¹ = 8453652479 is a prime.

It is a super-2 number, since 2×8453652481² (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 (8453652401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79751386 + ... + 79751491.

It is an arithmetic number, because the mean of its divisors is an integer number (2153288853).

Almost surely, 2^8453652481 is an apocalyptic number.

It is an amenable number.

8453652481 is a deficient number, since it is larger than the sum of its proper divisors (159502931).

8453652481 is a wasteful number, since it uses less digits than its factorization.

8453652481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159502930.

The product of its digits is 921600, while the sum is 46.

The square root of 8453652481 is about 91943.7462854326. The cubic root of 8453652481 is about 2037.1114829788. Note that the first 3 decimals are identical.

The spelling of 8453652481 in words is "eight billion, four hundred fifty-three million, six hundred fifty-two thousand, four hundred eighty-one".