8642563413 has 8 divisors (see below), whose sum is σ = 12571001376. Its totient is φ = 5237917200.

The previous prime is 8642563381. The next prime is 8642563427. The reversal of 8642563413 is 3143652468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8642563413 - 2⁵ = 8642563381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642563483) 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 7 ways as a sum of consecutive naturals, for example, 130947898 + ... + 130947963.

It is an arithmetic number, because the mean of its divisors is an integer number (1571375172).

Almost surely, 2^8642563413 is an apocalyptic number.

It is an amenable number.

8642563413 is a deficient number, since it is larger than the sum of its proper divisors (3928437963).

8642563413 is a wasteful number, since it uses less digits than its factorization.

8642563413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261895875.

The product of its digits is 414720, while the sum is 42.

The square root of 8642563413 is about 92965.3882528331. The cubic root of 8642563413 is about 2052.1740499537.

The spelling of 8642563413 in words is "eight billion, six hundred forty-two million, five hundred sixty-three thousand, four hundred thirteen".