4905981931 has 2 divisors, whose sum is σ = 4905981932. Its totient is φ = 4905981930.

The previous prime is 4905981893. The next prime is 4905981947. The reversal of 4905981931 is 1391895094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4905981931 - 2⁹ = 4905981419 is a prime.

It is a super-2 number, since 2×4905981931² = 48137317414596977522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4905981991) 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, 2452990965 + 2452990966.

It is an arithmetic number, because the mean of its divisors is an integer number (2452990966).

Almost surely, 2^4905981931 is an apocalyptic number.

4905981931 is a deficient number, since it is larger than the sum of its proper divisors (1).

4905981931 is an equidigital number, since it uses as much as digits as its factorization.

4905981931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 4905981931 is about 70042.7150458918. The cubic root of 4905981931 is about 1699.1901484022.

The spelling of 4905981931 in words is "four billion, nine hundred five million, nine hundred eighty-one thousand, nine hundred thirty-one".