2889380826465 has 32 divisors (see below), whose sum is σ = 5283529337856. Its totient is φ = 1320837278400.

The previous prime is 2889380826443. The next prime is 2889380826467. The reversal of 2889380826465 is 5646280839882.

2889380826465 is a nontrivial binomial coefficient, being equal to C(2403906, 2).

It is not a de Polignac number, because 2889380826465 - 2⁶ = 2889380826401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2889380826465.

It is not an unprimeable number, because it can be changed into a prime (2889380826467) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7011390 + ... + 7412040.

It is an arithmetic number, because the mean of its divisors is an integer number (165110291808).

Almost surely, 2^{2889380826465} is an apocalyptic number.

2889380826465 is the 2403905-th triangular number and also the 1201953-rd hexagonal number.

It is an amenable number.

2889380826465 is a deficient number, since it is larger than the sum of its proper divisors (2394148511391).

2889380826465 is a wasteful number, since it uses less digits than its factorization.

2889380826465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469349.

The product of its (nonzero) digits is 318504960, while the sum is 69.

The spelling of 2889380826465 in words is "two trillion, eight hundred eighty-nine billion, three hundred eighty million, eight hundred twenty-six thousand, four hundred sixty-five".