1428721571573 has 8 divisors (see below), whose sum is σ = 1468989969792. Its totient is φ = 1388540241936.

The previous prime is 1428721571467. The next prime is 1428721571597. The reversal of 1428721571573 is 3751751278241.

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 1428721571573 - 2⁸ = 1428721571317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428721571873) 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, 21733865 + ... + 21799502.

It is an arithmetic number, because the mean of its divisors is an integer number (183623746224).

Almost surely, 2^{1428721571573} is an apocalyptic number.

It is an amenable number.

1428721571573 is a deficient number, since it is larger than the sum of its proper divisors (40268398219).

1428721571573 is an equidigital number, since it uses as much as digits as its factorization.

1428721571573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43534291.

The product of its digits is 3292800, while the sum is 53.

The spelling of 1428721571573 in words is "one trillion, four hundred twenty-eight billion, seven hundred twenty-one million, five hundred seventy-one thousand, five hundred seventy-three".