2772666345 has 16 divisors (see below), whose sum is σ = 4453534080. Its totient is φ = 1472999424.

The previous prime is 2772666343. The next prime is 2772666361. The reversal of 2772666345 is 5436662772.

2772666345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2772666345 - 2¹ = 2772666343 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2772666294 and 2772666303.

It is not an unprimeable number, because it can be changed into a prime (2772666343) 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, 355765 + ... + 363474.

It is an arithmetic number, because the mean of its divisors is an integer number (278345880).

Almost surely, 2^2772666345 is an apocalyptic number.

It is an amenable number.

2772666345 is a deficient number, since it is larger than the sum of its proper divisors (1680867735).

2772666345 is a wasteful number, since it uses less digits than its factorization.

2772666345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719504.

The product of its digits is 2540160, while the sum is 48.

The square root of 2772666345 is about 52656.1140324654. The cubic root of 2772666345 is about 1404.8583495531.

The spelling of 2772666345 in words is "two billion, seven hundred seventy-two million, six hundred sixty-six thousand, three hundred forty-five".