2889923985 has 48 divisors (see below), whose sum is σ = 5427799104. Its totient is φ = 1413956736.

The previous prime is 2889923947. The next prime is 2889924013. The reversal of 2889923985 is 5893299882.

It is not a de Polignac number, because 2889923985 - 2⁹ = 2889923473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80202 + ... + 110508.

It is an arithmetic number, because the mean of its divisors is an integer number (113079148).

Almost surely, 2^2889923985 is an apocalyptic number.

It is an amenable number.

2889923985 is a deficient number, since it is larger than the sum of its proper divisors (2537875119).

2889923985 is a wasteful number, since it uses less digits than its factorization.

2889923985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30494 (or 30491 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The square root of 2889923985 is about 53758.0132166359. The cubic root of 2889923985 is about 1424.3896407306.

The spelling of 2889923985 in words is "two billion, eight hundred eighty-nine million, nine hundred twenty-three thousand, nine hundred eighty-five".