1912180089856 has 99 divisors (see below), whose sum is σ = 3878581901859. Its totient is φ = 942261884928.

The previous prime is 1912180089773. The next prime is 1912180089863. The reversal of 1912180089856 is 6589800812191.

The square root of 1912180089856 is 1382816.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1912180089856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3495758575 + ... + 3495759121.

Almost surely, 2^{1912180089856} is an apocalyptic number.

1912180089856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1912180089856 is the 1382816-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912180089856

1912180089856 is an abundant number, since it is smaller than the sum of its proper divisors (1966401812003).

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

1912180089856 is an frugal number, since it uses more digits than its factorization.

1912180089856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 58.

The spelling of 1912180089856 in words is "one trillion, nine hundred twelve billion, one hundred eighty million, eighty-nine thousand, eight hundred fifty-six".