8557804848421 has 8 divisors (see below), whose sum is σ = 8736079700600. Its totient is φ = 8380755253440.

The previous prime is 8557804848401. The next prime is 8557804848431. The reversal of 8557804848421 is 1248484087558.

It can be written as a sum of positive squares in 4 ways, for example, as 1346270563521 + 7211534284900 = 1160289^2 + 2685430^2 .

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 8557804848421 - 2⁹ = 8557804847909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557804848401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306300186 + ... + 306328123.

It is an arithmetic number, because the mean of its divisors is an integer number (1092009962575).

Almost surely, 2^{8557804848421} is an apocalyptic number.

It is an amenable number.

8557804848421 is a deficient number, since it is larger than the sum of its proper divisors (178274852179).

8557804848421 is a wasteful number, since it uses less digits than its factorization.

8557804848421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612628599.

The product of its (nonzero) digits is 91750400, while the sum is 64.

The spelling of 8557804848421 in words is "eight trillion, five hundred fifty-seven billion, eight hundred four million, eight hundred forty-eight thousand, four hundred twenty-one".