4088981381 has 2 divisors, whose sum is σ = 4088981382. Its totient is φ = 4088981380.

The previous prime is 4088981357. The next prime is 4088981417. The reversal of 4088981381 is 1831898804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3917633281 + 171348100 = 62591^2 + 13090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4088981381 is a prime.

It is a super-2 number, since 2×4088981381² = 33439537468329334322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4088981081) 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, 2044490690 + 2044490691.

It is an arithmetic number, because the mean of its divisors is an integer number (2044490691).

Almost surely, 2^4088981381 is an apocalyptic number.

It is an amenable number.

4088981381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4088981381 is an equidigital number, since it uses as much as digits as its factorization.

4088981381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 50.

The square root of 4088981381 is about 63945.1435294347. The cubic root of 4088981381 is about 1599.0855948318.

The spelling of 4088981381 in words is "four billion, eighty-eight million, nine hundred eighty-one thousand, three hundred eighty-one".