6493891549894 has 32 divisors (see below), whose sum is σ = 11791842615360. Its totient is φ = 2618360183808.

The previous prime is 6493891549811. The next prime is 6493891549919. The reversal of 6493891549894 is 4989451983946.

It is a super-2 number, since 2×6493891549894² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4726839 + ... + 5943970.

It is an arithmetic number, because the mean of its divisors is an integer number (368495081730).

Almost surely, 2^{6493891549894} is an apocalyptic number.

6493891549894 is a deficient number, since it is larger than the sum of its proper divisors (5297951065466).

6493891549894 is a wasteful number, since it uses less digits than its factorization.

6493891549894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10673392.

The product of its digits is 2418647040, while the sum is 79.

The spelling of 6493891549894 in words is "six trillion, four hundred ninety-three billion, eight hundred ninety-one million, five hundred forty-nine thousand, eight hundred ninety-four".