2116869876 has 240 divisors, whose sum is σ = 6511464960. Its totient is φ = 592764480.

The previous prime is 2116869871. The next prime is 2116869901. The reversal of 2116869876 is 6789686112.

It is a super-2 number, since 2×2116869876² = 8962276143832510752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116869871) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2911425 + ... + 2912151.

It is an arithmetic number, because the mean of its divisors is an integer number (27131104).

Almost surely, 2^2116869876 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 2116869876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255732480).

2116869876 is an abundant number, since it is smaller than the sum of its proper divisors (4394595084).

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

2116869876 is a wasteful number, since it uses less digits than its factorization.

2116869876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 805 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 2116869876 is about 46009.4542023702. The cubic root of 2116869876 is about 1283.9991047247. Note that the first 3 decimals are identical.

The spelling of 2116869876 in words is "two billion, one hundred sixteen million, eight hundred sixty-nine thousand, eight hundred seventy-six".