2775115772 has 48 divisors (see below), whose sum is σ = 5719593600. Its totient is φ = 1161504960.

The previous prime is 2775115771. The next prime is 2775115789.

2775115772 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775115771) 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 15 ways as a sum of consecutive naturals, for example, 233879 + ... + 245457.

It is an arithmetic number, because the mean of its divisors is an integer number (119158200).

Almost surely, 2^2775115772 is an apocalyptic number.

2775115772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2775115772 is an abundant number, since it is smaller than the sum of its proper divisors (2944477828).

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

2775115772 is a wasteful number, since it uses less digits than its factorization.

2775115772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026 (or 12024 counting only the distinct ones).

The product of its digits is 240100, while the sum is 44.

The square root of 2775115772 is about 52679.3676119978. The cubic root of 2775115772 is about 1405.2719207911.

The spelling of 2775115772 in words is "two billion, seven hundred seventy-five million, one hundred fifteen thousand, seven hundred seventy-two".