7142184857 has 8 divisors (see below), whose sum is σ = 7563178656. Its totient is φ = 6721287232.

The previous prime is 7142184853. The next prime is 7142184883. The reversal of 7142184857 is 7584812417.

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 7142184857 - 2² = 7142184853 is a prime.

It is a super-2 number, since 2×7142184857² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142184853) 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, 176918 + ... + 213504.

It is an arithmetic number, because the mean of its divisors is an integer number (945397332).

Almost surely, 2^7142184857 is an apocalyptic number.

It is an amenable number.

7142184857 is a deficient number, since it is larger than the sum of its proper divisors (420993799).

7142184857 is a wasteful number, since it uses less digits than its factorization.

7142184857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48087.

The product of its digits is 501760, while the sum is 47.

The square root of 7142184857 is about 84511.4480824935. The cubic root of 7142184857 is about 1925.7963630988.

The spelling of 7142184857 in words is "seven billion, one hundred forty-two million, one hundred eighty-four thousand, eight hundred fifty-seven".