1812841475632 has 80 divisors (see below), whose sum is σ = 3904603875072. Its totient is φ = 808342895360.

The previous prime is 1812841475537. The next prime is 1812841475633. The reversal of 1812841475632 is 2365741482181.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1812841475632.

It is not an unprimeable number, because it can be changed into a prime (1812841475633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82140663 + ... + 82162729.

Almost surely, 2^{1812841475632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1812841475632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1952301937536).

1812841475632 is an abundant number, since it is smaller than the sum of its proper divisors (2091762399440).

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

1812841475632 is a wasteful number, since it uses less digits than its factorization.

1812841475632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30946 (or 30940 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 1812841475632 in words is "one trillion, eight hundred twelve billion, eight hundred forty-one million, four hundred seventy-five thousand, six hundred thirty-two".