1428857173029 has 64 divisors (see below), whose sum is σ = 2343287439360. Its totient is φ = 762497191680.

The previous prime is 1428857173019. The next prime is 1428857173067. The reversal of 1428857173029 is 9203717588241.

It is a happy number.

It is not a de Polignac number, because 1428857173029 - 2⁴ = 1428857173013 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428857173029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428857173019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340732 + ... + 1724474.

It is an arithmetic number, because the mean of its divisors is an integer number (36613866240).

Almost surely, 2^{1428857173029} is an apocalyptic number.

It is an amenable number.

1428857173029 is a deficient number, since it is larger than the sum of its proper divisors (914430266331).

1428857173029 is a wasteful number, since it uses less digits than its factorization.

1428857173029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383882.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 1428857173029 in words is "one trillion, four hundred twenty-eight billion, eight hundred fifty-seven million, one hundred seventy-three thousand, twenty-nine".