2116777308 has 96 divisors (see below), whose sum is σ = 5479219200. Its totient is φ = 633023424.

The previous prime is 2116777307. The next prime is 2116777319. The reversal of 2116777308 is 8037776112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116777308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116777307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538173 + ... + 542091.

It is an arithmetic number, because the mean of its divisors is an integer number (57075200).

Almost surely, 2^2116777308 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 2116777308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739609600).

2116777308 is an abundant number, since it is smaller than the sum of its proper divisors (3362441892).

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

2116777308 is a wasteful number, since it uses less digits than its factorization.

2116777308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071 (or 4069 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 2116777308 is about 46008.4482242120. The cubic root of 2116777308 is about 1283.9803885748.

The spelling of 2116777308 in words is "two billion, one hundred sixteen million, seven hundred seventy-seven thousand, three hundred eight".