4993967189 has 2 divisors, whose sum is σ = 4993967190. Its totient is φ = 4993967188.

The previous prime is 4993967179. The next prime is 4993967191. The reversal of 4993967189 is 9817693994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4017404689 + 976562500 = 63383^2 + 31250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4993967189 - 2²⁰ = 4992918613 is a prime.

Together with 4993967191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4993967179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496983594 + 2496983595.

It is an arithmetic number, because the mean of its divisors is an integer number (2496983595).

Almost surely, 2^4993967189 is an apocalyptic number.

It is an amenable number.

4993967189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993967189 is an equidigital number, since it uses as much as digits as its factorization.

4993967189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26453952, while the sum is 65.

The square root of 4993967189 is about 70668.0068277010. The cubic root of 4993967189 is about 1709.2879391144.

The spelling of 4993967189 in words is "four billion, nine hundred ninety-three million, nine hundred sixty-seven thousand, one hundred eighty-nine".