2705772405 has 72 divisors (see below), whose sum is σ = 5100073632. Its totient is φ = 1221385536.

The previous prime is 2705772389. The next prime is 2705772427. The reversal of 2705772405 is 5042775072.

It is not a de Polignac number, because 2705772405 - 2⁴ = 2705772389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7797442 + ... + 7797788.

It is an arithmetic number, because the mean of its divisors is an integer number (70834356).

Almost surely, 2^2705772405 is an apocalyptic number.

It is an amenable number.

2705772405 is a deficient number, since it is larger than the sum of its proper divisors (2394301227).

2705772405 is a wasteful number, since it uses less digits than its factorization.

2705772405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 39.

The square root of 2705772405 is about 52017.0395639736. The cubic root of 2705772405 is about 1393.4682819102.

The spelling of 2705772405 in words is "two billion, seven hundred five million, seven hundred seventy-two thousand, four hundred five".