2989807812 has 72 divisors (see below), whose sum is σ = 7910710080. Its totient is φ = 950304960.

The previous prime is 2989807811. The next prime is 2989807841. The reversal of 2989807812 is 2187089892.

It is not an unprimeable number, because it can be changed into a prime (2989807811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268614 + ... + 279522.

Almost surely, 2^2989807812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2989807812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3955355040).

2989807812 is an abundant number, since it is smaller than the sum of its proper divisors (4920902268).

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

2989807812 is a wasteful number, since it uses less digits than its factorization.

2989807812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11273 (or 11268 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 2989807812 is about 54679.1350699698. The cubic root of 2989807812 is about 1440.6144195150.

The spelling of 2989807812 in words is "two billion, nine hundred eighty-nine million, eight hundred seven thousand, eight hundred twelve".