4985445893 has 4 divisors (see below), whose sum is σ = 4987763628. Its totient is φ = 4983128160.

The previous prime is 4985445869. The next prime is 4985445923. The reversal of 4985445893 is 3985445894.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2160204484 + 2825241409 = 46478^2 + 53153^2 .

It is a cyclic number.

It is not a de Polignac number, because 4985445893 - 2¹⁴ = 4985429509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4985445193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155638 + ... + 1159943.

It is an arithmetic number, because the mean of its divisors is an integer number (1246940907).

Almost surely, 2^4985445893 is an apocalyptic number.

It is an amenable number.

4985445893 is a deficient number, since it is larger than the sum of its proper divisors (2317735).

4985445893 is a wasteful number, since it uses less digits than its factorization.

4985445893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317734.

The product of its digits is 24883200, while the sum is 59.

The square root of 4985445893 is about 70607.6900415245. The cubic root of 4985445893 is about 1708.3151893839.

Subtracting from 4985445893 its reverse (3985445894), we obtain a palindrome (999999999).

The spelling of 4985445893 in words is "four billion, nine hundred eighty-five million, four hundred forty-five thousand, eight hundred ninety-three".