5045918645 has 8 divisors (see below), whose sum is σ = 6059851704. Its totient is φ = 4033568704.

The previous prime is 5045918621. The next prime is 5045918693. The reversal of 5045918645 is 5468195405.

It can be written as a sum of positive squares in 4 ways, for example, as 355586449 + 4690332196 = 18857^2 + 68486^2 .

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 5045918645 - 2⁸ = 5045918389 is a prime.

It is a super-2 number, since 2×5045918645² = 50922589943917272050, which contains 22 as substring.

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 5045918645.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 388754 + ... + 401523.

It is an arithmetic number, because the mean of its divisors is an integer number (757481463).

Almost surely, 2^5045918645 is an apocalyptic number.

It is an amenable number.

5045918645 is a deficient number, since it is larger than the sum of its proper divisors (1013933059).

5045918645 is a wasteful number, since it uses less digits than its factorization.

5045918645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791559.

The product of its (nonzero) digits is 864000, while the sum is 47.

The square root of 5045918645 is about 71034.6298997890. The cubic root of 5045918645 is about 1715.1946552933.

The spelling of 5045918645 in words is "five billion, forty-five million, nine hundred eighteen thousand, six hundred forty-five".