1812581753160 has 256 divisors, whose sum is σ = 5852659276800. Its totient is φ = 447679484928.

The previous prime is 1812581753113. The next prime is 1812581753183. The reversal of 1812581753160 is 613571852181.

It is a happy number.

It is a super-2 number, since 2×1812581753160² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34171219 + ... + 34224221.

It is an arithmetic number, because the mean of its divisors is an integer number (22861950300).

Almost surely, 2^{1812581753160} is an apocalyptic number.

1812581753160 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 1812581753160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926329638400).

1812581753160 is an abundant number, since it is smaller than the sum of its proper divisors (4040077523640).

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

1812581753160 is a wasteful number, since it uses less digits than its factorization.

1812581753160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53372 (or 53368 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 1812581753160 in words is "one trillion, eight hundred twelve billion, five hundred eighty-one million, seven hundred fifty-three thousand, one hundred sixty".