800142857143 has 4 divisors (see below), whose sum is σ = 914448979600. Its totient is φ = 685836734688.

The previous prime is 800142857009. The next prime is 800142857153. The reversal of 800142857143 is 341758241008.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 800142857143 - 2¹³ = 800142848951 is a prime.

It is a super-2 number, since 2×800142857143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 800142857143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800142857153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57153061218 + ... + 57153061231.

It is an arithmetic number, because the mean of its divisors is an integer number (228612244900).

Almost surely, 2^800142857143 is an apocalyptic number.

800142857143 is a deficient number, since it is larger than the sum of its proper divisors (114306122457).

800142857143 is a wasteful number, since it uses less digits than its factorization.

800142857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114306122456.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 800142857143 in words is "eight hundred billion, one hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-three".