2745510813 has 6 divisors (see below), whose sum is σ = 3965737854. Its totient is φ = 1830340536.

The previous prime is 2745510793. The next prime is 2745510871. The reversal of 2745510813 is 3180155472.

2745510813 is a `hidden beast` number, since 27 + 4 + 551 + 0 + 81 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2674648089 + 70862724 = 51717^2 + 8418^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2745510813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745510883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152528370 + ... + 152528387.

It is an arithmetic number, because the mean of its divisors is an integer number (660956309).

Almost surely, 2^2745510813 is an apocalyptic number.

It is an amenable number.

2745510813 is a deficient number, since it is larger than the sum of its proper divisors (1220227041).

2745510813 is a wasteful number, since it uses less digits than its factorization.

2745510813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305056763 (or 305056760 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2745510813 is about 52397.6222075010. The cubic root of 2745510813 is about 1400.2568938446.

The spelling of 2745510813 in words is "two billion, seven hundred forty-five million, five hundred ten thousand, eight hundred thirteen".