1457445857473 has 2 divisors, whose sum is σ = 1457445857474. Its totient is φ = 1457445857472.

The previous prime is 1457445857449. The next prime is 1457445857477. The reversal of 1457445857473 is 3747585447541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748065848464 + 709380009009 = 864908^2 + 842247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457445857473 - 2¹³ = 1457445849281 is a prime.

It is not a weakly prime, because it can be changed into another prime (1457445857477) 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 as a sum of consecutive naturals, namely, 728722928736 + 728722928737.

It is an arithmetic number, because the mean of its divisors is an integer number (728722928737).

Almost surely, 2^{1457445857473} is an apocalyptic number.

It is an amenable number.

1457445857473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457445857473 is an equidigital number, since it uses as much as digits as its factorization.

1457445857473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424000, while the sum is 64.

The spelling of 1457445857473 in words is "one trillion, four hundred fifty-seven billion, four hundred forty-five million, eight hundred fifty-seven thousand, four hundred seventy-three".