2772664745 has 16 divisors (see below), whose sum is σ = 3438923088. Its totient is φ = 2144413440.

The previous prime is 2772664733. The next prime is 2772664751. The reversal of 2772664745 is 5474662772.

It can be written as a sum of positive squares in 8 ways, for example, as 46676224 + 2725988521 = 6832^2 + 52211^2 .

It is not a de Polignac number, because 2772664745 - 2⁶ = 2772664681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2772664693 and 2772664702.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18686 + ... + 76775.

It is an arithmetic number, because the mean of its divisors is an integer number (214932693).

Almost surely, 2^2772664745 is an apocalyptic number.

It is an amenable number.

2772664745 is a deficient number, since it is larger than the sum of its proper divisors (666258343).

2772664745 is a wasteful number, since it uses less digits than its factorization.

2772664745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95660.

The product of its digits is 3951360, while the sum is 50.

The square root of 2772664745 is about 52656.0988395456. The cubic root of 2772664745 is about 1404.8580793230.

The spelling of 2772664745 in words is "two billion, seven hundred seventy-two million, six hundred sixty-four thousand, seven hundred forty-five".