493791649449 has 24 divisors (see below), whose sum is σ = 765909902880. Its totient is φ = 282155981184.

The previous prime is 493791649411. The next prime is 493791649459. The reversal of 493791649449 is 944946197394.

It is not a de Polignac number, because 493791649449 - 2²⁰ = 493790600873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493791649409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5466082 + ... + 5555684.

It is an arithmetic number, because the mean of its divisors is an integer number (31912912620).

Almost surely, 2^493791649449 is an apocalyptic number.

493791649449 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

493791649449 is a deficient number, since it is larger than the sum of its proper divisors (272118253431).

493791649449 is a wasteful number, since it uses less digits than its factorization.

493791649449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127109 (or 127102 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 69.

The spelling of 493791649449 in words is "four hundred ninety-three billion, seven hundred ninety-one million, six hundred forty-nine thousand, four hundred forty-nine".