4909769048491 has 8 divisors (see below), whose sum is σ = 5168199516480. Its totient is φ = 4651340737608.

The previous prime is 4909769048479. The next prime is 4909769048533. The reversal of 4909769048491 is 1948409679094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4909769048491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4909769048491.

It is not an unprimeable number, because it can be changed into a prime (4909769048411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6466440 + ... + 7185706.

It is an arithmetic number, because the mean of its divisors is an integer number (646024939560).

Almost surely, 2^{4909769048491} is an apocalyptic number.

4909769048491 is a deficient number, since it is larger than the sum of its proper divisors (258430467989).

4909769048491 is a wasteful number, since it uses less digits than its factorization.

4909769048491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078553.

The product of its (nonzero) digits is 141087744, while the sum is 70.

The spelling of 4909769048491 in words is "four trillion, nine hundred nine billion, seven hundred sixty-nine million, forty-eight thousand, four hundred ninety-one".