2064867900 has 72 divisors (see below), whose sum is σ = 5990283264. Its totient is φ = 549163200.

The previous prime is 2064867877. The next prime is 2064867929. The reversal of 2064867900 is 97684602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105915 + ... + 123885.

Almost surely, 2^2064867900 is an apocalyptic number.

2064867900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2064867900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995141632).

2064867900 is an abundant number, since it is smaller than the sum of its proper divisors (3925415364).

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

2064867900 is a wasteful number, since it uses less digits than its factorization.

2064867900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18371 (or 18364 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2064867900 is about 45440.8175542650. The cubic root of 2064867900 is about 1273.3977875204.

The spelling of 2064867900 in words is "two billion, sixty-four million, eight hundred sixty-seven thousand, nine hundred".