1803893029044 has 12 divisors (see below), whose sum is σ = 4209083734464. Its totient is φ = 601297676344.

The previous prime is 1803893029027. The next prime is 1803893029091. The reversal of 1803893029044 is 4409203983081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75162209532 + ... + 75162209555.

It is an arithmetic number, because the mean of its divisors is an integer number (350756977872).

Almost surely, 2^{1803893029044} is an apocalyptic number.

It is an amenable number.

1803893029044 is an abundant number, since it is smaller than the sum of its proper divisors (2405190705420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1803893029044 is a wasteful number, since it uses less digits than its factorization.

1803893029044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150324419094 (or 150324419092 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 1803893029044 in words is "one trillion, eight hundred three billion, eight hundred ninety-three million, twenty-nine thousand, forty-four".