1428587287143 has 4 divisors (see below), whose sum is σ = 1904783049528. Its totient is φ = 952391524760.

The previous prime is 1428587287133. The next prime is 1428587287147. The reversal of 1428587287143 is 3417827858241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428587287143 - 2³² = 1424292319847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428587287147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238097881188 + ... + 238097881193.

It is an arithmetic number, because the mean of its divisors is an integer number (476195762382).

Almost surely, 2^{1428587287143} is an apocalyptic number.

1428587287143 is a deficient number, since it is larger than the sum of its proper divisors (476195762385).

1428587287143 is an equidigital number, since it uses as much as digits as its factorization.

1428587287143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476195762384.

The product of its digits is 24084480, while the sum is 60.

The spelling of 1428587287143 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-seven million, two hundred eighty-seven thousand, one hundred forty-three".