6536890863 has 8 divisors (see below), whose sum is σ = 9684282800. Its totient is φ = 4357927224.

The previous prime is 6536890859. The next prime is 6536890897. The reversal of 6536890863 is 3680986356.

It is not a de Polignac number, because 6536890863 - 2² = 6536890859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6536890823) 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, 121053508 + ... + 121053561.

It is an arithmetic number, because the mean of its divisors is an integer number (1210535350).

Almost surely, 2^6536890863 is an apocalyptic number.

6536890863 is a deficient number, since it is larger than the sum of its proper divisors (3147391937).

6536890863 is a wasteful number, since it uses less digits than its factorization.

6536890863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242107078 (or 242107072 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 6536890863 is about 80851.0411992326. The cubic root of 6536890863 is about 1869.7795752845.

The spelling of 6536890863 in words is "six billion, five hundred thirty-six million, eight hundred ninety thousand, eight hundred sixty-three".