4821845128551 has 16 divisors (see below), whose sum is σ = 7792881016320. Its totient is φ = 2922330380760.

The previous prime is 4821845128501. The next prime is 4821845128571. The reversal of 4821845128551 is 1558215481284.

It is a happy number.

4821845128551 is a `hidden beast` number, since 4 + 8 + 2 + 1 + 84 + 5 + 1 + 2 + 8 + 551 = 666.

It is not a de Polignac number, because 4821845128551 - 2⁷ = 4821845128423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4821845128501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8117584095 + ... + 8117584688.

It is an arithmetic number, because the mean of its divisors is an integer number (487055063520).

Almost surely, 2^{4821845128551} is an apocalyptic number.

4821845128551 is a deficient number, since it is larger than the sum of its proper divisors (2971035887769).

4821845128551 is a wasteful number, since it uses less digits than its factorization.

4821845128551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16235168803 (or 16235168797 counting only the distinct ones).

The product of its digits is 4096000, while the sum is 54.

The spelling of 4821845128551 in words is "four trillion, eight hundred twenty-one billion, eight hundred forty-five million, one hundred twenty-eight thousand, five hundred fifty-one".