6724138018 has 32 divisors (see below), whose sum is σ = 11225249280. Its totient is φ = 2999911680.

The previous prime is 6724137961. The next prime is 6724138033. The reversal of 6724138018 is 8108314276.

It is a super-2 number, since 2×6724138018² = 90428064170225936648, which contains 22 as substring.

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, 783193 + ... + 791731.

It is an arithmetic number, because the mean of its divisors is an integer number (350789040).

Almost surely, 2^6724138018 is an apocalyptic number.

6724138018 is a deficient number, since it is larger than the sum of its proper divisors (4501111262).

6724138018 is a wasteful number, since it uses less digits than its factorization.

6724138018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 6724138018 is about 82000.8415688522. The cubic root of 6724138018 is about 1887.4648519865.

The spelling of 6724138018 in words is "six billion, seven hundred twenty-four million, one hundred thirty-eight thousand, eighteen".