6493881049 has 8 divisors (see below), whose sum is σ = 6532162560. Its totient is φ = 6455711376.

The previous prime is 6493881029. The next prime is 6493881061. The reversal of 6493881049 is 9401883946.

It is a happy number.

6493881049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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-6493881049 is a prime.

It is a super-2 number, since 2×6493881049² = 84340982157122680802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6493880987 and 6493881005.

It is not an unprimeable number, because it can be changed into a prime (6493881029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89967 + ... + 145195.

It is an arithmetic number, because the mean of its divisors is an integer number (816520320).

Almost surely, 2^6493881049 is an apocalyptic number.

It is an amenable number.

6493881049 is a deficient number, since it is larger than the sum of its proper divisors (38281511).

6493881049 is a wasteful number, since it uses less digits than its factorization.

6493881049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55919.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 6493881049 is about 80584.6204247436. The cubic root of 6493881049 is about 1865.6697778100.

The spelling of 6493881049 in words is "six billion, four hundred ninety-three million, eight hundred eighty-one thousand, forty-nine".