2745057217 has 8 divisors (see below), whose sum is σ = 3137528000. Its totient is φ = 2352666384.

The previous prime is 2745057209. The next prime is 2745057221. The reversal of 2745057217 is 7127505472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2745057217 - 2³ = 2745057209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2745057217.

It is not an unprimeable number, because it can be changed into a prime (2745057277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109759 + ... + 132427.

It is an arithmetic number, because the mean of its divisors is an integer number (392191000).

Almost surely, 2^2745057217 is an apocalyptic number.

It is an amenable number.

2745057217 is a deficient number, since it is larger than the sum of its proper divisors (392470783).

2745057217 is a wasteful number, since it uses less digits than its factorization.

2745057217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39975.

The product of its (nonzero) digits is 137200, while the sum is 40.

The square root of 2745057217 is about 52393.2936261885. The cubic root of 2745057217 is about 1400.1797757233.

The spelling of 2745057217 in words is "two billion, seven hundred forty-five million, fifty-seven thousand, two hundred seventeen".