2745051885 has 48 divisors (see below), whose sum is σ = 5130740160. Its totient is φ = 1353127680.

The previous prime is 2745051871. The next prime is 2745051889. The reversal of 2745051885 is 5881505472.

2745051885 is a `hidden beast` number, since 2 + 7 + 4 + 50 + 518 + 85 = 666.

It is not a de Polignac number, because 2745051885 - 2⁹ = 2745051373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2745051885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745051889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4099 + ... + 74208.

It is an arithmetic number, because the mean of its divisors is an integer number (106890420).

Almost surely, 2^2745051885 is an apocalyptic number.

It is an amenable number.

2745051885 is a deficient number, since it is larger than the sum of its proper divisors (2385688275).

2745051885 is a wasteful number, since it uses less digits than its factorization.

2745051885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78378 (or 78375 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The square root of 2745051885 is about 52393.2427417888. The cubic root of 2745051885 is about 1400.1788691528.

The spelling of 2745051885 in words is "two billion, seven hundred forty-five million, fifty-one thousand, eight hundred eighty-five".