4838920828561 has 4 divisors (see below), whose sum is σ = 4847767119472. Its totient is φ = 4830074537652.

The previous prime is 4838920828549. The next prime is 4838920828591. The reversal of 4838920828561 is 1658280298384.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4838920828561 - 2¹¹ = 4838920826513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4838920828493 and 4838920828502.

It is not an unprimeable number, because it can be changed into a prime (4838920828591) 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, 4423144635 + ... + 4423145728.

It is an arithmetic number, because the mean of its divisors is an integer number (1211941779868).

Almost surely, 2^{4838920828561} is an apocalyptic number.

It is an amenable number.

4838920828561 is a deficient number, since it is larger than the sum of its proper divisors (8846290911).

4838920828561 is an equidigital number, since it uses as much as digits as its factorization.

4838920828561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846290910.

The product of its (nonzero) digits is 53084160, while the sum is 64.

The spelling of 4838920828561 in words is "four trillion, eight hundred thirty-eight billion, nine hundred twenty million, eight hundred twenty-eight thousand, five hundred sixty-one".