6818857272 has 48 divisors (see below), whose sum is σ = 18918179280. Its totient is φ = 2217513600.

The previous prime is 6818857259. The next prime is 6818857303. The reversal of 6818857272 is 2727588186.

6818857272 is a `hidden beast` number, since 68 + 1 + 8 + 8 + 572 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1152004 + ... + 1157907.

It is an arithmetic number, because the mean of its divisors is an integer number (394128735).

Almost surely, 2^6818857272 is an apocalyptic number.

It is an amenable number.

6818857272 is an abundant number, since it is smaller than the sum of its proper divisors (12099322008).

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

6818857272 is a wasteful number, since it uses less digits than its factorization.

6818857272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309964 (or 2309957 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 6818857272 is about 82576.3723591682. The cubic root of 6818857272 is about 1896.2861222311.

The spelling of 6818857272 in words is "six billion, eight hundred eighteen million, eight hundred fifty-seven thousand, two hundred seventy-two".