4524686643 has 4 divisors (see below), whose sum is σ = 6032915528. Its totient is φ = 3016457760.

The previous prime is 4524686627. The next prime is 4524686671. The reversal of 4524686643 is 3466864254.

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

It is not a de Polignac number, because 4524686643 - 2⁴ = 4524686627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4524686592 and 4524686601.

It is not an unprimeable number, because it can be changed into a prime (4524686443) 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 3 ways as a sum of consecutive naturals, for example, 754114438 + ... + 754114443.

It is an arithmetic number, because the mean of its divisors is an integer number (1508228882).

Almost surely, 2^4524686643 is an apocalyptic number.

4524686643 is a deficient number, since it is larger than the sum of its proper divisors (1508228885).

4524686643 is a wasteful number, since it uses less digits than its factorization.

4524686643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508228884.

The product of its digits is 3317760, while the sum is 48.

The square root of 4524686643 is about 67265.7910308055. The cubic root of 4524686643 is about 1653.9771390021.

The spelling of 4524686643 in words is "four billion, five hundred twenty-four million, six hundred eighty-six thousand, six hundred forty-three".