1804945792512 has 160 divisors (see below), whose sum is σ = 4921173417600. Its totient is φ = 587679326208.

The previous prime is 1804945792477. The next prime is 1804945792597. The reversal of 1804945792512 is 2152975494081.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14164539 + ... + 14291397.

It is an arithmetic number, because the mean of its divisors is an integer number (30757333860).

Almost surely, 2^{1804945792512} is an apocalyptic number.

1804945792512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1804945792512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460586708800).

1804945792512 is an abundant number, since it is smaller than the sum of its proper divisors (3116227625088).

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

1804945792512 is a wasteful number, since it uses less digits than its factorization.

1804945792512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127096 (or 127080 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 1804945792512 in words is "one trillion, eight hundred four billion, nine hundred forty-five million, seven hundred ninety-two thousand, five hundred twelve".