4976658621 has 48 divisors (see below), whose sum is σ = 8050511040. Its totient is φ = 2936424960.

The previous prime is 4976658569. The next prime is 4976658647. The reversal of 4976658621 is 1268566794.

4976658621 is a `hidden beast` number, since 4 + 9 + 7 + 6 + 6 + 5 + 8 + 621 = 666.

It is not a de Polignac number, because 4976658621 - 2⁹ = 4976658109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4976659621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1432875 + ... + 1436343.

It is an arithmetic number, because the mean of its divisors is an integer number (167718980).

Almost surely, 2^4976658621 is an apocalyptic number.

It is an amenable number.

4976658621 is a deficient number, since it is larger than the sum of its proper divisors (3073852419).

4976658621 is a wasteful number, since it uses less digits than its factorization.

4976658621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866 (or 3863 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 4976658621 is about 70545.4365710497. The cubic root of 4976658621 is about 1707.3109155543.

The spelling of 4976658621 in words is "four billion, nine hundred seventy-six million, six hundred fifty-eight thousand, six hundred twenty-one".