4845019505849 has 4 divisors (see below), whose sum is σ = 4848687197940. Its totient is φ = 4841351813760.

The previous prime is 4845019505813. The next prime is 4845019505873. The reversal of 4845019505849 is 9485059105484.

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 4720016953600 + 125002552249 = 2172560^2 + 353557^2 .

It is a cyclic number.

It is not a de Polignac number, because 4845019505849 - 2⁸ = 4845019505593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4845019505791 and 4845019505800.

It is not an unprimeable number, because it can be changed into a prime (4845069505849) 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, 1833844064 + ... + 1833846705.

It is an arithmetic number, because the mean of its divisors is an integer number (1212171799485).

Almost surely, 2^{4845019505849} is an apocalyptic number.

It is an amenable number.

4845019505849 is a deficient number, since it is larger than the sum of its proper divisors (3667692091).

4845019505849 is a wasteful number, since it uses less digits than its factorization.

4845019505849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667692090.

The product of its (nonzero) digits is 41472000, while the sum is 62.

The spelling of 4845019505849 in words is "four trillion, eight hundred forty-five billion, nineteen million, five hundred five thousand, eight hundred forty-nine".