6812513626 has 8 divisors (see below), whose sum is σ = 10219486644. Its totient is φ = 3406018080.

The previous prime is 6812513621. The next prime is 6812513641. The reversal of 6812513626 is 6263152186.

It can be written as a sum of positive squares in 2 ways, for example, as 6691403601 + 121110025 = 81801^2 + 11005^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6812513621) 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 3 ways as a sum of consecutive naturals, for example, 81265 + ... + 142228.

Almost surely, 2^6812513626 is an apocalyptic number.

6812513626 is a deficient number, since it is larger than the sum of its proper divisors (3406973018).

6812513626 is a wasteful number, since it uses less digits than its factorization.

6812513626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238736.

The product of its digits is 103680, while the sum is 40.

The square root of 6812513626 is about 82537.9526399825. The cubic root of 6812513626 is about 1895.6978956086.

The spelling of 6812513626 in words is "six billion, eight hundred twelve million, five hundred thirteen thousand, six hundred twenty-six".