2645542774 has 32 divisors (see below), whose sum is σ = 4563542016. Its totient is φ = 1126746720.

The previous prime is 2645542769. The next prime is 2645542799. The reversal of 2645542774 is 4772455462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2433259 + ... + 2434345.

It is an arithmetic number, because the mean of its divisors is an integer number (142610688).

Almost surely, 2^2645542774 is an apocalyptic number.

2645542774 is a deficient number, since it is larger than the sum of its proper divisors (1917999242).

2645542774 is a wasteful number, since it uses less digits than its factorization.

2645542774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020.

The product of its digits is 1881600, while the sum is 46.

The square root of 2645542774 is about 51434.8400794636. The cubic root of 2645542774 is about 1383.0512151770.

The spelling of 2645542774 in words is "two billion, six hundred forty-five million, five hundred forty-two thousand, seven hundred seventy-four".