1812548544960 has 224 divisors, whose sum is σ = 6077100936960. Its totient is φ = 456442601472.

The previous prime is 1812548544923. The next prime is 1812548545001. The reversal of 1812548544960 is 694458452181.

It is a super-2 number, since 2×1812548544960² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 1812548544960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5550379 + ... + 5867861.

Almost surely, 2^{1812548544960} is an apocalyptic number.

1812548544960 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 1812548544960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3038550468480).

1812548544960 is an abundant number, since it is smaller than the sum of its proper divisors (4264552392000).

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

1812548544960 is a wasteful number, since it uses less digits than its factorization.

1812548544960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317835 (or 317825 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 57.

The spelling of 1812548544960 in words is "one trillion, eight hundred twelve billion, five hundred forty-eight million, five hundred forty-four thousand, nine hundred sixty".