2589671820 has 24 divisors (see below), whose sum is σ = 7251081264. Its totient is φ = 690579136.

The previous prime is 2589671803. The next prime is 2589671869. The reversal of 2589671820 is 281769852.

It is a super-2 number, since 2×2589671820² = 13412800270604224800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2589671820.

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, 21580539 + ... + 21580658.

It is an arithmetic number, because the mean of its divisors is an integer number (302128386).

Almost surely, 2^2589671820 is an apocalyptic number.

2589671820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2589671820 is an abundant number, since it is smaller than the sum of its proper divisors (4661409444).

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

2589671820 is a wasteful number, since it uses less digits than its factorization.

2589671820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43161209 (or 43161207 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 2589671820 is about 50888.8182216880. The cubic root of 2589671820 is about 1373.2456868741.

The spelling of 2589671820 in words is "two billion, five hundred eighty-nine million, six hundred seventy-one thousand, eight hundred twenty".