1645324366874 has 32 divisors (see below), whose sum is σ = 2580321744000. Its totient is φ = 785358249984.

The previous prime is 1645324366853. The next prime is 1645324366883. The reversal of 1645324366874 is 4786634235461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57256142 + ... + 57284870.

It is an arithmetic number, because the mean of its divisors is an integer number (80635054500).

Almost surely, 2^{1645324366874} is an apocalyptic number.

1645324366874 is a deficient number, since it is larger than the sum of its proper divisors (934997377126).

1645324366874 is a wasteful number, since it uses less digits than its factorization.

1645324366874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31142.

The product of its digits is 69672960, while the sum is 59.

The spelling of 1645324366874 in words is "one trillion, six hundred forty-five billion, three hundred twenty-four million, three hundred sixty-six thousand, eight hundred seventy-four".