1813245201200 has 60 divisors (see below), whose sum is σ = 4375856885568. Its totient is φ = 722045587200.

The previous prime is 1813245201143. The next prime is 1813245201301. The reversal of 1813245201200 is 21025423181.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10074731 + ... + 10253130.

Almost surely, 2^{1813245201200} is an apocalyptic number.

1813245201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1813245201200 is an abundant number, since it is smaller than the sum of its proper divisors (2562611684368).

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

1813245201200 is a wasteful number, since it uses less digits than its factorization.

1813245201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20328102 (or 20328091 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 1813245201200 in words is "one trillion, eight hundred thirteen billion, two hundred forty-five million, two hundred one thousand, two hundred".