2745898185 has 16 divisors (see below), whose sum is σ = 4459012416. Its totient is φ = 1442620608.

The previous prime is 2745898159. The next prime is 2745898187. The reversal of 2745898185 is 5818985472.

It is not a de Polignac number, because 2745898185 - 2⁶ = 2745898121 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2745898187) 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, 1365114 + ... + 1367123.

It is an arithmetic number, because the mean of its divisors is an integer number (278688276).

Almost surely, 2^2745898185 is an apocalyptic number.

It is an amenable number.

2745898185 is a deficient number, since it is larger than the sum of its proper divisors (1713114231).

2745898185 is a wasteful number, since it uses less digits than its factorization.

2745898185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732312.

The product of its digits is 6451200, while the sum is 57.

The square root of 2745898185 is about 52401.3185425710. The cubic root of 2745898185 is about 1400.3227461689.

The spelling of 2745898185 in words is "two billion, seven hundred forty-five million, eight hundred ninety-eight thousand, one hundred eighty-five".