1428715715873 has 8 divisors (see below), whose sum is σ = 1429435741800. Its totient is φ = 1427995820160.

The previous prime is 1428715715851. The next prime is 1428715715983. The reversal of 1428715715873 is 3785175178241.

It can be written as a sum of positive squares in 4 ways, for example, as 73475149969 + 1355240565904 = 271063^2 + 1164148^2 .

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 1428715715873 - 2⁸ = 1428715715617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428715715803) 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, 27597653 + ... + 27649373.

It is an arithmetic number, because the mean of its divisors is an integer number (178679467725).

Almost surely, 2^{1428715715873} is an apocalyptic number.

It is an amenable number.

1428715715873 is a deficient number, since it is larger than the sum of its proper divisors (720025927).

1428715715873 is a wasteful number, since it uses less digits than its factorization.

1428715715873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65107.

The product of its digits is 13171200, while the sum is 59.

The spelling of 1428715715873 in words is "one trillion, four hundred twenty-eight billion, seven hundred fifteen million, seven hundred fifteen thousand, eight hundred seventy-three".