4649618791 has 2 divisors, whose sum is σ = 4649618792. Its totient is φ = 4649618790.

The previous prime is 4649618789. The next prime is 4649618849. The reversal of 4649618791 is 1978169464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4649618791 - 2¹ = 4649618789 is a prime.

Together with 4649618789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4649618191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324809395 + 2324809396.

It is an arithmetic number, because the mean of its divisors is an integer number (2324809396).

Almost surely, 2^4649618791 is an apocalyptic number.

4649618791 is a deficient number, since it is larger than the sum of its proper divisors (1).

4649618791 is an equidigital number, since it uses as much as digits as its factorization.

4649618791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 55.

The square root of 4649618791 is about 68188.1132676363. The cubic root of 4649618791 is about 1669.0619220331.

The spelling of 4649618791 in words is "four billion, six hundred forty-nine million, six hundred eighteen thousand, seven hundred ninety-one".