6863496891 has 8 divisors (see below), whose sum is σ = 9153738240. Its totient is φ = 4574460072.

The previous prime is 6863496889. The next prime is 6863496919. The reversal of 6863496891 is 1986943686.

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

It is not a de Polignac number, because 6863496891 - 2¹ = 6863496889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6863496811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287751 + ... + 310688.

It is an arithmetic number, because the mean of its divisors is an integer number (1144217280).

Almost surely, 2^6863496891 is an apocalyptic number.

6863496891 is a deficient number, since it is larger than the sum of its proper divisors (2290241349).

6863496891 is a wasteful number, since it uses less digits than its factorization.

6863496891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602265.

The product of its digits is 13436928, while the sum is 60.

The square root of 6863496891 is about 82846.2243617656. The cubic root of 6863496891 is about 1900.4151346822.

The spelling of 6863496891 in words is "six billion, eight hundred sixty-three million, four hundred ninety-six thousand, eight hundred ninety-one".