4941782861 has 2 divisors, whose sum is σ = 4941782862. Its totient is φ = 4941782860.

The previous prime is 4941782801. The next prime is 4941782893. The reversal of 4941782861 is 1682871494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4895800900 + 45981961 = 69970^2 + 6781^2 .

It is a cyclic number.

It is not a de Polignac number, because 4941782861 - 2²⁶ = 4874673997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4941782801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2470891430 + 2470891431.

It is an arithmetic number, because the mean of its divisors is an integer number (2470891431).

Almost surely, 2^4941782861 is an apocalyptic number.

It is an amenable number.

4941782861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4941782861 is an equidigital number, since it uses as much as digits as its factorization.

4941782861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 50.

The square root of 4941782861 is about 70297.8154781498. The cubic root of 4941782861 is about 1703.3133604385.

The spelling of 4941782861 in words is "four billion, nine hundred forty-one million, seven hundred eighty-two thousand, eight hundred sixty-one".