4878746643 has 16 divisors (see below), whose sum is σ = 6551928576. Its totient is φ = 3229074720.

The previous prime is 4878746617. The next prime is 4878746659. The reversal of 4878746643 is 3466478784.

It is not a de Polignac number, because 4878746643 - 2⁸ = 4878746387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4878746693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499321 + ... + 508997.

It is an arithmetic number, because the mean of its divisors is an integer number (409495536).

Almost surely, 2^4878746643 is an apocalyptic number.

4878746643 is a deficient number, since it is larger than the sum of its proper divisors (1673181933).

4878746643 is a wasteful number, since it uses less digits than its factorization.

4878746643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10874.

The product of its digits is 21676032, while the sum is 57.

The square root of 4878746643 is about 69848.0253335769. The cubic root of 4878746643 is about 1696.0399917655.

The spelling of 4878746643 in words is "four billion, eight hundred seventy-eight million, seven hundred forty-six thousand, six hundred forty-three".