4681990139 has 2 divisors, whose sum is σ = 4681990140. Its totient is φ = 4681990138.

The previous prime is 4681990099. The next prime is 4681990141. The reversal of 4681990139 is 9310991864.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4681990139 is a prime.

Together with 4681990141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4681990189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2340995069 + 2340995070.

It is an arithmetic number, because the mean of its divisors is an integer number (2340995070).

Almost surely, 2^4681990139 is an apocalyptic number.

4681990139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4681990139 is an equidigital number, since it uses as much as digits as its factorization.

4681990139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 4681990139 is about 68425.0695213384. The cubic root of 4681990139 is about 1672.9263878914.

The spelling of 4681990139 in words is "four billion, six hundred eighty-one million, nine hundred ninety thousand, one hundred thirty-nine".