2789445550 has 12 divisors (see below), whose sum is σ = 5188368816. Its totient is φ = 1115778200.

The previous prime is 2789445517. The next prime is 2789445551. The reversal of 2789445550 is 555449872.

It is a junction number, because it is equal to n+sod(n) for n = 2789445494 and 2789445503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789445551) 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 5 ways as a sum of consecutive naturals, for example, 27894406 + ... + 27894505.

It is an arithmetic number, because the mean of its divisors is an integer number (432364068).

Almost surely, 2^2789445550 is an apocalyptic number.

2789445550 is a deficient number, since it is larger than the sum of its proper divisors (2398923266).

2789445550 is a wasteful number, since it uses less digits than its factorization.

2789445550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55788923 (or 55788918 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The square root of 2789445550 is about 52815.2018835486. The cubic root of 2789445550 is about 1407.6865555581.

The spelling of 2789445550 in words is "two billion, seven hundred eighty-nine million, four hundred forty-five thousand, five hundred fifty".