1812766021080 has 192 divisors, whose sum is σ = 6601235408640. Its totient is φ = 396331423488.

The previous prime is 1812766021063. The next prime is 1812766021151. The reversal of 1812766021080 is 801206672181.

It is a super-3 number, since 3×1812766021080³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6566794 + ... + 6837273.

It is an arithmetic number, because the mean of its divisors is an integer number (34381434420).

Almost surely, 2^{1812766021080} is an apocalyptic number.

1812766021080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1812766021080 is an abundant number, since it is smaller than the sum of its proper divisors (4788469387560).

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

1812766021080 is a wasteful number, since it uses less digits than its factorization.

1812766021080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13404118 (or 13404107 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 1812766021080 in words is "one trillion, eight hundred twelve billion, seven hundred sixty-six million, twenty-one thousand, eighty".