1604425644404 has 12 divisors (see below), whose sum is σ = 3062994412128. Its totient is φ = 729284383800.

The previous prime is 1604425644401. The next prime is 1604425644407. The reversal of 1604425644404 is 4044465244061.

It is an interprime number because it is at equal distance from previous prime (1604425644401) and next prime (1604425644407).

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 36464219191 = 1604425644404 / (1 + 6 + 0 + 4 + 4 + 2 + 5 + 6 + 4 + 4 + 4 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604425644401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18232109552 + ... + 18232109639.

It is an arithmetic number, because the mean of its divisors is an integer number (255249534344).

Almost surely, 2^{1604425644404} is an apocalyptic number.

It is an amenable number.

1604425644404 is a deficient number, since it is larger than the sum of its proper divisors (1458568767724).

1604425644404 is a wasteful number, since it uses less digits than its factorization.

1604425644404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36464219206 (or 36464219204 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 1604425644404 in words is "one trillion, six hundred four billion, four hundred twenty-five million, six hundred forty-four thousand, four hundred four".