2989045680 has 40 divisors (see below), whose sum is σ = 9266042352. Its totient is φ = 797078784.

The previous prime is 2989045679. The next prime is 2989045693. The reversal of 2989045680 is 865409892.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6226939 + ... + 6227418.

Almost surely, 2^2989045680 is an apocalyptic number.

2989045680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989045680 is an abundant number, since it is smaller than the sum of its proper divisors (6276996672).

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

2989045680 is a wasteful number, since it uses less digits than its factorization.

2989045680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454373 (or 12454367 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 2989045680 is about 54672.1654957987. The cubic root of 2989045680 is about 1440.4920000907.

The spelling of 2989045680 in words is "two billion, nine hundred eighty-nine million, forty-five thousand, six hundred eighty".