7142857142804 has 12 divisors (see below), whose sum is σ = 12500864495028. Its totient is φ = 3571181572800.

The previous prime is 7142857142777. The next prime is 7142857142857. The reversal of 7142857142804 is 4082417582417.

It can be written as a sum of positive squares in 2 ways, for example, as 1192682410000 + 5950174732804 = 1092100^2 + 2439298^2 .

It is a super-2 number, since 2×7142857142804² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61684577 + ... + 61800264.

It is an arithmetic number, because the mean of its divisors is an integer number (1041738707919).

Almost surely, 2^{7142857142804} is an apocalyptic number.

It is an amenable number.

7142857142804 is a deficient number, since it is larger than the sum of its proper divisors (5358007352224).

7142857142804 is a wasteful number, since it uses less digits than its factorization.

7142857142804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123499306 (or 123499304 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 7142857142804 in words is "seven trillion, one hundred forty-two billion, eight hundred fifty-seven million, one hundred forty-two thousand, eight hundred four".