4791944989 has 32 divisors (see below), whose sum is σ = 5837892480. Its totient is φ = 3884931072.

The previous prime is 4791944977. The next prime is 4791945017. The reversal of 4791944989 is 9894491974.

It is a cyclic number.

It is not a de Polignac number, because 4791944989 - 2⁵ = 4791944957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4791944989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4791944909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272817 + ... + 289849.

It is an arithmetic number, because the mean of its divisors is an integer number (182434140).

Almost surely, 2^4791944989 is an apocalyptic number.

It is an amenable number.

4791944989 is a deficient number, since it is larger than the sum of its proper divisors (1045947491).

4791944989 is a wasteful number, since it uses less digits than its factorization.

4791944989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17149.

The product of its digits is 23514624, while the sum is 64.

The square root of 4791944989 is about 69223.8758594172. The cubic root of 4791944989 is about 1685.9212107057.

The spelling of 4791944989 in words is "four billion, seven hundred ninety-one million, nine hundred forty-four thousand, nine hundred eighty-nine".