4820990643 has 40 divisors (see below), whose sum is σ = 8405709312. Its totient is φ = 2696223024.

The previous prime is 4820990639. The next prime is 4820990659. The reversal of 4820990643 is 3460990284.

It is not a de Polignac number, because 4820990643 - 2² = 4820990639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4820990633) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63805 + ... + 117102.

Almost surely, 2^4820990643 is an apocalyptic number.

4820990643 is a deficient number, since it is larger than the sum of its proper divisors (3584718669).

4820990643 is a wasteful number, since it uses less digits than its factorization.

4820990643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180973 (or 180964 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 4820990643 is about 69433.3539662315. The cubic root of 4820990643 is about 1689.3206707945.

The spelling of 4820990643 in words is "four billion, eight hundred twenty million, nine hundred ninety thousand, six hundred forty-three".