2772505647 has 12 divisors (see below), whose sum is σ = 4142824920. Its totient is φ = 1784601168.

The previous prime is 2772505613. The next prime is 2772505699. The reversal of 2772505647 is 7465052772.

It is not a de Polignac number, because 2772505647 - 2⁸ = 2772505391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772505447) 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 11 ways as a sum of consecutive naturals, for example, 5311053 + ... + 5311574.

It is an arithmetic number, because the mean of its divisors is an integer number (345235410).

Almost surely, 2^2772505647 is an apocalyptic number.

2772505647 is a deficient number, since it is larger than the sum of its proper divisors (1370319273).

2772505647 is a wasteful number, since it uses less digits than its factorization.

2772505647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10622662 (or 10622659 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The square root of 2772505647 is about 52654.5880906878. The cubic root of 2772505647 is about 1404.8312081351.

The spelling of 2772505647 in words is "two billion, seven hundred seventy-two million, five hundred five thousand, six hundred forty-seven".