6818125447 has 8 divisors (see below), whose sum is σ = 7822465056. Its totient is φ = 5821366272.

The previous prime is 6818125427. The next prime is 6818125477. The reversal of 6818125447 is 7445218186.

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

It is a cyclic number.

It is not a de Polignac number, because 6818125447 - 2²⁷ = 6683907719 is a prime.

It is a super-2 number, since 2×6818125447² = 92973669222057899618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6818125397 and 6818125406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818125427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893178 + ... + 1896775.

It is an arithmetic number, because the mean of its divisors is an integer number (977808132).

Almost surely, 2^6818125447 is an apocalyptic number.

6818125447 is a deficient number, since it is larger than the sum of its proper divisors (1004339609).

6818125447 is a wasteful number, since it uses less digits than its factorization.

6818125447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790217.

The product of its digits is 430080, while the sum is 46.

The square root of 6818125447 is about 82571.9410393143. The cubic root of 6818125447 is about 1896.2182809890.

The spelling of 6818125447 in words is "six billion, eight hundred eighteen million, one hundred twenty-five thousand, four hundred forty-seven".