2771229492 has 18 divisors (see below), whose sum is σ = 7005052418. Its totient is φ = 923743152.

The previous prime is 2771229457. The next prime is 2771229493. The reversal of 2771229492 is 2949221772.

It is a happy number.

2771229492 is a `hidden beast` number, since 277 + 1 + 2 + 294 + 92 = 666.

2771229492 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 only one way, i.e., 1679852196 + 1091377296 = 40986^2 + 33036^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771229493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38489263 + ... + 38489334.

Almost surely, 2^2771229492 is an apocalyptic number.

It is an amenable number.

2771229492 is an abundant number, since it is smaller than the sum of its proper divisors (4233822926).

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

2771229492 is a wasteful number, since it uses less digits than its factorization.

2771229492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76978607 (or 76978602 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2771229492 is about 52642.4685211474. The cubic root of 2771229492 is about 1404.6156320780.

The spelling of 2771229492 in words is "two billion, seven hundred seventy-one million, two hundred twenty-nine thousand, four hundred ninety-two".