1428714442873 has 4 divisors (see below), whose sum is σ = 1428720507508. Its totient is φ = 1428708378240.

The previous prime is 1428714442849. The next prime is 1428714442879. The reversal of 1428714442873 is 3782444178241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1384171074064 + 44543368809 = 1176508^2 + 211053^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428714442873 - 2⁹ = 1428714442361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428714442879) 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, 2664036 + ... + 3155077.

It is an arithmetic number, because the mean of its divisors is an integer number (357180126877).

Almost surely, 2^{1428714442873} is an apocalyptic number.

It is an amenable number.

1428714442873 is a deficient number, since it is larger than the sum of its proper divisors (6064635).

1428714442873 is an equidigital number, since it uses as much as digits as its factorization.

1428714442873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064634.

The product of its digits is 9633792, while the sum is 55.

The spelling of 1428714442873 in words is "one trillion, four hundred twenty-eight billion, seven hundred fourteen million, four hundred forty-two thousand, eight hundred seventy-three".