1769001081444 has 135 divisors (see below), whose sum is σ = 4881979587177. Its totient is φ = 558488276352.

The previous prime is 1769001081413. The next prime is 1769001081457. The reversal of 1769001081444 is 4441801009671.

The square root of 1769001081444 is 1330038.

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

1769001081444 is a `hidden beast` number, since 17 + 6 + 90 + 0 + 108 + 1 + 444 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1282243699044 + 486757382400 = 1132362^2 + 697680^2 .

It is a super-2 number, since 2×1769001081444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1769001081444.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 454871052 + ... + 454874940.

Almost surely, 2^{1769001081444} is an apocalyptic number.

1769001081444 is the 1330038-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1769001081444

1769001081444 is an abundant number, since it is smaller than the sum of its proper divisors (3112978505733).

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

1769001081444 is an frugal number, since it uses more digits than its factorization.

1769001081444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832 (or 3913 counting only the distinct ones).

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

The spelling of 1769001081444 in words is "one trillion, seven hundred sixty-nine billion, one million, eighty-one thousand, four hundred forty-four".