6863512782 has 32 divisors (see below), whose sum is σ = 16610856192. Its totient is φ = 1845650304.

The previous prime is 6863512771. The next prime is 6863512807. The reversal of 6863512782 is 2872153686.

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, 4805668 + ... + 4807095.

It is an arithmetic number, because the mean of its divisors is an integer number (519089256).

Almost surely, 2^6863512782 is an apocalyptic number.

6863512782 is an abundant number, since it is smaller than the sum of its proper divisors (9747343410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6863512782 is a wasteful number, since it uses less digits than its factorization.

6863512782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9612792.

The product of its digits is 967680, while the sum is 48.

The square root of 6863512782 is about 82846.3202683137. The cubic root of 6863512782 is about 1900.4166013531.

The spelling of 6863512782 in words is "six billion, eight hundred sixty-three million, five hundred twelve thousand, seven hundred eighty-two".