2745644505 has 16 divisors (see below), whose sum is σ = 4394125824. Its totient is φ = 1463978880.

The previous prime is 2745644501. The next prime is 2745644509. The reversal of 2745644505 is 5054465472.

It is an interprime number because it is at equal distance from previous prime (2745644501) and next prime (2745644509).

It is not a de Polignac number, because 2745644505 - 2² = 2745644501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2745644501) 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, 46125 + ... + 87285.

It is an arithmetic number, because the mean of its divisors is an integer number (274632864).

Almost surely, 2^2745644505 is an apocalyptic number.

It is an amenable number.

2745644505 is a deficient number, since it is larger than the sum of its proper divisors (1648481319).

2745644505 is a wasteful number, since it uses less digits than its factorization.

2745644505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45616.

The product of its (nonzero) digits is 672000, while the sum is 42.

The square root of 2745644505 is about 52398.8979368841. The cubic root of 2745644505 is about 1400.2796218685.

The spelling of 2745644505 in words is "two billion, seven hundred forty-five million, six hundred forty-four thousand, five hundred five".