2289989664436 has 12 divisors (see below), whose sum is σ = 4007948121828. Its totient is φ = 1144861629632.

The previous prime is 2289989664433. The next prime is 2289989664439. The reversal of 2289989664436 is 6344669899822.

It is an interprime number because it is at equal distance from previous prime (2289989664433) and next prime (2289989664439).

It can be written as a sum of positive squares in 2 ways, for example, as 2067211328400 + 222778336036 = 1437780^2 + 471994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289989664433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33261961 + ... + 33330736.

It is an arithmetic number, because the mean of its divisors is an integer number (333995676819).

Almost surely, 2^{2289989664436} is an apocalyptic number.

It is an amenable number.

2289989664436 is a deficient number, since it is larger than the sum of its proper divisors (1717958457392).

2289989664436 is a wasteful number, since it uses less digits than its factorization.

2289989664436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66601298 (or 66601296 counting only the distinct ones).

The product of its digits is 1934917632, while the sum is 76.

The spelling of 2289989664436 in words is "two trillion, two hundred eighty-nine billion, nine hundred eighty-nine million, six hundred sixty-four thousand, four hundred thirty-six".