1822279680000 has 1500 divisors, whose sum is σ = 7369703955460. Its totient is φ = 448561152000.

The previous prime is 1822279679999. The next prime is 1822279680043. The reversal of 1822279680000 is 869722281.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 10 ways, for example, as 1438157389824 + 384122290176 = 1199232^2 + 619776^2 .

It is a tau number, because it is divible by the number of its divisors (1500).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 15600 × 9360 × 12480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 140175359994 + ... + 140175360006.

Almost surely, 2^{1822279680000} is an apocalyptic number.

1822279680000 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 1822279680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3684851977730).

1822279680000 is an abundant number, since it is smaller than the sum of its proper divisors (5547424275460).

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

1822279680000 is an frugal number, since it uses more digits than its factorization.

1822279680000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 1822279680000 in words is "one trillion, eight hundred twenty-two billion, two hundred seventy-nine million, six hundred eighty thousand".