6812138586 has 48 divisors (see below), whose sum is σ = 15458575104. Its totient is φ = 1997688000.

The previous prime is 6812138569. The next prime is 6812138611. The reversal of 6812138586 is 6858312186.

It is a super-2 number, since 2×6812138586² = 92810464229740158792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128835 + ... + 173846.

It is an arithmetic number, because the mean of its divisors is an integer number (322053648).

Almost surely, 2^6812138586 is an apocalyptic number.

6812138586 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6812138586 is an abundant number, since it is smaller than the sum of its proper divisors (8646436518).

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

6812138586 is a wasteful number, since it uses less digits than its factorization.

6812138586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302739 (or 302728 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 6812138586 is about 82535.6806841744. The cubic root of 6812138586 is about 1895.6631078820.

The spelling of 6812138586 in words is "six billion, eight hundred twelve million, one hundred thirty-eight thousand, five hundred eighty-six".