4985798381 has 2 divisors, whose sum is σ = 4985798382. Its totient is φ = 4985798380.

The previous prime is 4985798353. The next prime is 4985798383. The reversal of 4985798381 is 1838975894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4683212356 + 302586025 = 68434^2 + 17395^2 .

It is a cyclic number.

It is not a de Polignac number, because 4985798381 - 2²² = 4981604077 is a prime.

It is a super-2 number, since 2×4985798381² = 49716370991964442322, which contains 22 as substring.

Together with 4985798383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4985798383) 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 as a sum of consecutive naturals, namely, 2492899190 + 2492899191.

It is an arithmetic number, because the mean of its divisors is an integer number (2492899191).

Almost surely, 2^4985798381 is an apocalyptic number.

It is an amenable number.

4985798381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4985798381 is an equidigital number, since it uses as much as digits as its factorization.

4985798381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 62.

The square root of 4985798381 is about 70610.1860994574. The cubic root of 4985798381 is about 1708.3554496686.

The spelling of 4985798381 in words is "four billion, nine hundred eighty-five million, seven hundred ninety-eight thousand, three hundred eighty-one".