4793780891 has 2 divisors, whose sum is σ = 4793780892. Its totient is φ = 4793780890.

The previous prime is 4793780777. The next prime is 4793780897. The reversal of 4793780891 is 1980873974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4793780891 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4793780897) 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, 2396890445 + 2396890446.

It is an arithmetic number, because the mean of its divisors is an integer number (2396890446).

Almost surely, 2^4793780891 is an apocalyptic number.

4793780891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4793780891 is an equidigital number, since it uses as much as digits as its factorization.

4793780891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 4793780891 is about 69237.1352021442. The cubic root of 4793780891 is about 1686.1364880051.

The spelling of 4793780891 in words is "four billion, seven hundred ninety-three million, seven hundred eighty thousand, eight hundred ninety-one".