1457447447329 has 4 divisors (see below), whose sum is σ = 1457455876884. Its totient is φ = 1457439017776.

The previous prime is 1457447447303. The next prime is 1457447447333. The reversal of 1457447447329 is 9237447447541.

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 797984890000 + 659462557329 = 893300^2 + 812073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457447447329 - 2¹⁷ = 1457447316257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457447447359) 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, 3949882 + ... + 4303075.

It is an arithmetic number, because the mean of its divisors is an integer number (364363969221).

Almost surely, 2^{1457447447329} is an apocalyptic number.

It is an amenable number.

1457447447329 is a deficient number, since it is larger than the sum of its proper divisors (8429555).

1457447447329 is an equidigital number, since it uses as much as digits as its factorization.

1457447447329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429554.

The product of its digits is 94832640, while the sum is 61.

The spelling of 1457447447329 in words is "one trillion, four hundred fifty-seven billion, four hundred forty-seven million, four hundred forty-seven thousand, three hundred twenty-nine".