4979238728 has 8 divisors (see below), whose sum is σ = 9336072630. Its totient is φ = 2489619360.

The previous prime is 4979238713. The next prime is 4979238731. The reversal of 4979238728 is 8278329794.

It can be written as a sum of positive squares in only one way, i.e., 4941808804 + 37429924 = 70298^2 + 6118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311202413 + ... + 311202428.

Almost surely, 2^4979238728 is an apocalyptic number.

It is an amenable number.

4979238728 is a deficient number, since it is larger than the sum of its proper divisors (4356833902).

4979238728 is a wasteful number, since it uses less digits than its factorization.

4979238728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622404847 (or 622404843 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 59.

The square root of 4979238728 is about 70563.7210470083. The cubic root of 4979238728 is about 1707.6059115979.

The spelling of 4979238728 in words is "four billion, nine hundred seventy-nine million, two hundred thirty-eight thousand, seven hundred twenty-eight".