5378821556423 has 64 divisors (see below), whose sum is σ = 6617136734208. Its totient is φ = 4271744822400.

The previous prime is 5378821556389. The next prime is 5378821556441. The reversal of 5378821556423 is 3246551288735.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5378821556423 - 2¹⁴ = 5378821540039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5378821556123) 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 63 ways as a sum of consecutive naturals, for example, 2653586336 + ... + 2653588362.

It is an arithmetic number, because the mean of its divisors is an integer number (103392761472).

Almost surely, 2^{5378821556423} is an apocalyptic number.

5378821556423 is a deficient number, since it is larger than the sum of its proper divisors (1238315177785).

5378821556423 is a wasteful number, since it uses less digits than its factorization.

5378821556423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its digits is 48384000, while the sum is 59.

The spelling of 5378821556423 in words is "five trillion, three hundred seventy-eight billion, eight hundred twenty-one million, five hundred fifty-six thousand, four hundred twenty-three".