9803878831 has 2 divisors, whose sum is σ = 9803878832. Its totient is φ = 9803878830.

The previous prime is 9803878829. The next prime is 9803878883. The reversal of 9803878831 is 1388783089.

9803878831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9803878831 - 2¹ = 9803878829 is a prime.

It is a super-2 number, since 2×9803878831² (a number of 21 digits) contains 22 as substring.

Together with 9803878829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9803872831) 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, 4901939415 + 4901939416.

It is an arithmetic number, because the mean of its divisors is an integer number (4901939416).

Almost surely, 2^9803878831 is an apocalyptic number.

9803878831 is a deficient number, since it is larger than the sum of its proper divisors (1).

9803878831 is an equidigital number, since it uses as much as digits as its factorization.

9803878831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 9803878831 is about 99014.5384829925. The cubic root of 9803878831 is about 2140.2572572640.

The spelling of 9803878831 in words is "nine billion, eight hundred three million, eight hundred seventy-eight thousand, eight hundred thirty-one".