4948109081 has 2 divisors, whose sum is σ = 4948109082. Its totient is φ = 4948109080.

The previous prime is 4948109077. The next prime is 4948109129. The reversal of 4948109081 is 1809018494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4103683600 + 844425481 = 64060^2 + 29059^2 .

It is a cyclic number.

It is not a de Polignac number, because 4948109081 - 2² = 4948109077 is a prime.

It is a super-2 number, since 2×4948109081² = 48967566954949329122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4948109681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474054540 + 2474054541.

It is an arithmetic number, because the mean of its divisors is an integer number (2474054541).

Almost surely, 2^4948109081 is an apocalyptic number.

It is an amenable number.

4948109081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4948109081 is an equidigital number, since it uses as much as digits as its factorization.

4948109081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 4948109081 is about 70342.7969375685. The cubic root of 4948109081 is about 1704.0398823248.

The spelling of 4948109081 in words is "four billion, nine hundred forty-eight million, one hundred nine thousand, eighty-one".