4905494591 has 4 divisors (see below), whose sum is σ = 5063736384. Its totient is φ = 4747252800.

The previous prime is 4905494543. The next prime is 4905494597. The reversal of 4905494591 is 1954945094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4905494591 - 2⁶ = 4905494527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905494597) 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 in 3 ways as a sum of consecutive naturals, for example, 79120850 + ... + 79120911.

It is an arithmetic number, because the mean of its divisors is an integer number (1265934096).

Almost surely, 2^4905494591 is an apocalyptic number.

4905494591 is a deficient number, since it is larger than the sum of its proper divisors (158241793).

4905494591 is a wasteful number, since it uses less digits than its factorization.

4905494591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158241792.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 4905494591 is about 70039.2360823560. The cubic root of 4905494591 is about 1699.1338830266.

The spelling of 4905494591 in words is "four billion, nine hundred five million, four hundred ninety-four thousand, five hundred ninety-one".