1812163222984 has 32 divisors (see below), whose sum is σ = 3576715048800. Its totient is φ = 858374599680.

The previous prime is 1812163222979. The next prime is 1812163223021. The reversal of 1812163222984 is 4892223612181.

It is a super-3 number, since 3×1812163222984³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9133879 + ... + 9330169.

It is an arithmetic number, because the mean of its divisors is an integer number (111772345275).

Almost surely, 2^{1812163222984} is an apocalyptic number.

It is an amenable number.

1812163222984 is a deficient number, since it is larger than the sum of its proper divisors (1764551825816).

1812163222984 is a wasteful number, since it uses less digits than its factorization.

1812163222984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257053 (or 257049 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The spelling of 1812163222984 in words is "one trillion, eight hundred twelve billion, one hundred sixty-three million, two hundred twenty-two thousand, nine hundred eighty-four".