4993513891 has 2 divisors, whose sum is σ = 4993513892. Its totient is φ = 4993513890.

The previous prime is 4993513871. The next prime is 4993513907. The reversal of 4993513891 is 1983153994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4993513891 - 2⁵ = 4993513859 is a prime.

It is not a weakly prime, because it can be changed into another prime (4993513871) 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, 2496756945 + 2496756946.

It is an arithmetic number, because the mean of its divisors is an integer number (2496756946).

Almost surely, 2^4993513891 is an apocalyptic number.

4993513891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993513891 is an equidigital number, since it uses as much as digits as its factorization.

4993513891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 52.

The square root of 4993513891 is about 70664.7995185722. The cubic root of 4993513891 is about 1709.2362206964.

The spelling of 4993513891 in words is "four billion, nine hundred ninety-three million, five hundred thirteen thousand, eight hundred ninety-one".