2163810000 has 400 divisors, whose sum is σ = 7809500160. Its totient is φ = 511680000.

The previous prime is 2163809941. The next prime is 2163810023. The reversal of 2163810000 is 183612.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×2163810000² = 9364147432200000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26069959 + ... + 26070041.

Almost surely, 2^2163810000 is an apocalyptic number.

2163810000 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 2163810000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3904750080).

2163810000 is an abundant number, since it is smaller than the sum of its proper divisors (5645690160).

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

2163810000 is a wasteful number, since it uses less digits than its factorization.

2163810000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2163810000 is about 46516.7711691171. The cubic root of 2163810000 is about 1293.4204042654.

Adding to 2163810000 its reverse (183612), we get a palindrome (2163993612).

The spelling of 2163810000 in words is "two billion, one hundred sixty-three million, eight hundred ten thousand".