4979582981 has 2 divisors, whose sum is σ = 4979582982. Its totient is φ = 4979582980.

The previous prime is 4979582957. The next prime is 4979582989. The reversal of 4979582981 is 1892859794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3251850625 + 1727732356 = 57025^2 + 41566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4979582981 is a prime.

It is a super-2 number, since 2×4979582981² = 49592493329329692722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4979582989) by changing a digit.

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, 2489791490 + 2489791491.

It is an arithmetic number, because the mean of its divisors is an integer number (2489791491).

Almost surely, 2^4979582981 is an apocalyptic number.

It is an amenable number.

4979582981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4979582981 is an equidigital number, since it uses as much as digits as its factorization.

4979582981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 62.

The square root of 4979582981 is about 70566.1603107325. The cubic root of 4979582981 is about 1707.6452639931.

The spelling of 4979582981 in words is "four billion, nine hundred seventy-nine million, five hundred eighty-two thousand, nine hundred eighty-one".