2747779065 has 64 divisors (see below), whose sum is σ = 5124096000. Its totient is φ = 1394407872.

The previous prime is 2747779061. The next prime is 2747779079. The reversal of 2747779065 is 5609777472.

2747779065 is a `hidden beast` number, since 27 + 477 + 7 + 90 + 65 = 666.

It is not a de Polignac number, because 2747779065 - 2² = 2747779061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2747779061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 615672 + ... + 620118.

It is an arithmetic number, because the mean of its divisors is an integer number (80064000).

Almost surely, 2^2747779065 is an apocalyptic number.

It is an amenable number.

2747779065 is a deficient number, since it is larger than the sum of its proper divisors (2376316935).

2747779065 is a wasteful number, since it uses less digits than its factorization.

2747779065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683 (or 4677 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 54.

The square root of 2747779065 is about 52419.2623469655. The cubic root of 2747779065 is about 1400.6424033113.

The spelling of 2747779065 in words is "two billion, seven hundred forty-seven million, seven hundred seventy-nine thousand, sixty-five".