4634555491 has 2 divisors, whose sum is σ = 4634555492. Its totient is φ = 4634555490.

The previous prime is 4634555489. The next prime is 4634555543. The reversal of 4634555491 is 1945554364.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4634555491 - 2¹ = 4634555489 is a prime.

Together with 4634555489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4634555441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2317277745 + 2317277746.

It is an arithmetic number, because the mean of its divisors is an integer number (2317277746).

Almost surely, 2^4634555491 is an apocalyptic number.

4634555491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4634555491 is an equidigital number, since it uses as much as digits as its factorization.

4634555491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

The square root of 4634555491 is about 68077.5696613797. The cubic root of 4634555491 is about 1667.2575605130.

The spelling of 4634555491 in words is "four billion, six hundred thirty-four million, five hundred fifty-five thousand, four hundred ninety-one".