2989519644 has 12 divisors (see below), whose sum is σ = 6975545864. Its totient is φ = 996506544.

The previous prime is 2989519639. The next prime is 2989519657. The reversal of 2989519644 is 4469159892.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×2989519644³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124563307 + ... + 124563330.

Almost surely, 2^2989519644 is an apocalyptic number.

It is an amenable number.

2989519644 is an abundant number, since it is smaller than the sum of its proper divisors (3986026220).

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

2989519644 is a wasteful number, since it uses less digits than its factorization.

2989519644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249126644 (or 249126642 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 2989519644 is about 54676.4999245563. The cubic root of 2989519644 is about 1440.5681342307.

The spelling of 2989519644 in words is "two billion, nine hundred eighty-nine million, five hundred nineteen thousand, six hundred forty-four".