2775394772 has 48 divisors (see below), whose sum is σ = 5359329360. Its totient is φ = 1251704832.

The previous prime is 2775394763. The next prime is 2775394777. The reversal of 2775394772 is 2774935772.

2775394772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 9265936 + 2766128836 = 3044^2 + 52594^2 .

It is a super-2 number, since 2×2775394772² = 15405632280889863968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775394777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265028 + ... + 275300.

It is an arithmetic number, because the mean of its divisors is an integer number (111652695).

Almost surely, 2^2775394772 is an apocalyptic number.

It is an amenable number.

2775394772 is a deficient number, since it is larger than the sum of its proper divisors (2583934588).

2775394772 is a wasteful number, since it uses less digits than its factorization.

2775394772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460 (or 10458 counting only the distinct ones).

The product of its digits is 5186160, while the sum is 53.

The square root of 2775394772 is about 52682.0156410136. The cubic root of 2775394772 is about 1405.3190128478.

The spelling of 2775394772 in words is "two billion, seven hundred seventy-five million, three hundred ninety-four thousand, seven hundred seventy-two".