6493891549893 has 8 divisors (see below), whose sum is σ = 9445660436256. Its totient is φ = 3935691848400.

The previous prime is 6493891549811. The next prime is 6493891549919. The reversal of 6493891549893 is 3989451983946.

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

It is not a de Polignac number, because 6493891549893 - 2²⁹ = 6493354678981 is a prime.

It is a super-2 number, since 2×6493891549893² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6493891549493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98392296178 + ... + 98392296243.

It is an arithmetic number, because the mean of its divisors is an integer number (1180707554532).

Almost surely, 2^{6493891549893} is an apocalyptic number.

It is an amenable number.

6493891549893 is a deficient number, since it is larger than the sum of its proper divisors (2951768886363).

6493891549893 is a wasteful number, since it uses less digits than its factorization.

6493891549893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196784592435.

The product of its digits is 1813985280, while the sum is 78.

The spelling of 6493891549893 in words is "six trillion, four hundred ninety-three billion, eight hundred ninety-one million, five hundred forty-nine thousand, eight hundred ninety-three".