1812341502720 has 3456 divisors, whose sum is σ = 8589901824000. Its totient is φ = 358676398080.

The previous prime is 1812341502709. The next prime is 1812341502737. The reversal of 1812341502720 is 272051432181.

1812341502720 is a `hidden beast` number, since 1 + 8 + 1 + 234 + 150 + 272 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 22941031641 + ... + 22941031719.

It is an arithmetic number, because the mean of its divisors is an integer number (2485504000).

Almost surely, 2^{1812341502720} is an apocalyptic number.

1812341502720 is a gapful number since it is divisible by the number (10) 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 1812341502720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4294950912000).

1812341502720 is an abundant number, since it is smaller than the sum of its proper divisors (6777560321280).

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

1812341502720 is a wasteful number, since it uses less digits than its factorization.

1812341502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 1812341502720 in words is "one trillion, eight hundred twelve billion, three hundred forty-one million, five hundred two thousand, seven hundred twenty".