6113518685 has 8 divisors (see below), whose sum is σ = 7357993656. Its totient is φ = 4876300800.

The previous prime is 6113518667. The next prime is 6113518709. The reversal of 6113518685 is 5868153116.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1571567449 + 4541951236 = 39643^2 + 67394^2 .

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

It is not a de Polignac number, because 6113518685 - 2²² = 6109324381 is a prime.

It is a super-2 number, since 2×6113518685² = 74750221423688258450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1812416 + ... + 1815785.

It is an arithmetic number, because the mean of its divisors is an integer number (919749207).

Almost surely, 2^6113518685 is an apocalyptic number.

It is an amenable number.

6113518685 is a deficient number, since it is larger than the sum of its proper divisors (1244474971).

6113518685 is a wasteful number, since it uses less digits than its factorization.

6113518685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628543.

The product of its digits is 172800, while the sum is 44.

The square root of 6113518685 is about 78188.9933750269. The cubic root of 6113518685 is about 1828.5089115982.

The spelling of 6113518685 in words is "six billion, one hundred thirteen million, five hundred eighteen thousand, six hundred eighty-five".