2775796992 has 144 divisors (see below), whose sum is σ = 8691742080. Its totient is φ = 870801408.

The previous prime is 2775796979. The next prime is 2775796999. The reversal of 2775796992 is 2996975772.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775796999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105693 + ... + 129315.

It is an arithmetic number, because the mean of its divisors is an integer number (60359320).

Almost surely, 2^2775796992 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 2775796992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4345871040).

2775796992 is an abundant number, since it is smaller than the sum of its proper divisors (5915945088).

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

2775796992 is a wasteful number, since it uses less digits than its factorization.

2775796992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23665 (or 23645 counting only the distinct ones).

The product of its digits is 30005640, while the sum is 63.

The square root of 2775796992 is about 52685.8329344806. The cubic root of 2775796992 is about 1405.3868974979.

The spelling of 2775796992 in words is "two billion, seven hundred seventy-five million, seven hundred ninety-six thousand, nine hundred ninety-two".