1564481427873 has 16 divisors (see below), whose sum is σ = 2567354138496. Its totient is φ = 825220972800.

The previous prime is 1564481427851. The next prime is 1564481427893. The reversal of 1564481427873 is 3787241844651.

It is not a de Polignac number, because 1564481427873 - 2⁸ = 1564481427617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1564481427893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2865350328 + ... + 2865350873.

It is an arithmetic number, because the mean of its divisors is an integer number (160459633656).

Almost surely, 2^{1564481427873} is an apocalyptic number.

1564481427873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1564481427873 is a deficient number, since it is larger than the sum of its proper divisors (1002872710623).

1564481427873 is a wasteful number, since it uses less digits than its factorization.

1564481427873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730701224.

The product of its digits is 36126720, while the sum is 60.

The spelling of 1564481427873 in words is "one trillion, five hundred sixty-four billion, four hundred eighty-one million, four hundred twenty-seven thousand, eight hundred seventy-three".