4993401689 has 2 divisors, whose sum is σ = 4993401690. Its totient is φ = 4993401688.

The previous prime is 4993401643. The next prime is 4993401691. The reversal of 4993401689 is 9861043994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4937451289 + 55950400 = 70267^2 + 7480^2 .

It is a cyclic number.

It is not a de Polignac number, because 4993401689 - 2¹² = 4993397593 is a prime.

Together with 4993401691, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4993401689.

It is not a weakly prime, because it can be changed into another prime (4993401089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496700844 + 2496700845.

It is an arithmetic number, because the mean of its divisors is an integer number (2496700845).

Almost surely, 2^4993401689 is an apocalyptic number.

It is an amenable number.

4993401689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993401689 is an equidigital number, since it uses as much as digits as its factorization.

4993401689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 4993401689 is about 70664.0056110606. The cubic root of 4993401689 is about 1709.2234186787.

The spelling of 4993401689 in words is "four billion, nine hundred ninety-three million, four hundred one thousand, six hundred eighty-nine".