1774002894889 has 9 divisors (see below), whose sum is σ = 1783317462181. Its totient is φ = 1764736748320.

The previous prime is 1774002894877. The next prime is 1774002894901. The reversal of 1774002894889 is 9884982004771.

The square root of 1774002894889 is 1331917.

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

It is an interprime number because it is at equal distance from previous prime (1774002894877) and next prime (1774002894901).

It can be written as a sum of positive squares in 4 ways, for example, as 1193523475225 + 580479419664 = 1092485^2 + 761892^2 .

It is not a de Polignac number, because 1774002894889 - 2¹¹ = 1774002892841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1774002894869) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 262384269 + ... + 262391029.

Almost surely, 2^{1774002894889} is an apocalyptic number.

1774002894889 is the 1331917-th square number.

1774002894889 is the 665959-th centered octagonal number.

It is an amenable number.

1774002894889 is a deficient number, since it is larger than the sum of its proper divisors (9314567292).

1774002894889 is an frugal number, since it uses more digits than its factorization.

1774002894889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13916 (or 6958 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 67.

The spelling of 1774002894889 in words is "one trillion, seven hundred seventy-four billion, two million, eight hundred ninety-four thousand, eight hundred eighty-nine".