380221648578 has 54 divisors (see below), whose sum is σ = 832629516537. Its totient is φ = 125398489200.

The previous prime is 380221648567. The next prime is 380221648579. The reversal of 380221648578 is 875846122083.

380221648578 is a `hidden beast` number, since 3 + 8 + 0 + 2 + 2 + 1 + 64 + 8 + 578 = 666.

380221648578 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 263911320729 + 116310327849 = 513723^2 + 341043^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=436017.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (380221648579) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 264225583 + ... + 264227021.

Almost surely, 2^380221648578 is an apocalyptic number.

380221648578 is an abundant number, since it is smaller than the sum of its proper divisors (452407867959).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380221648578 is an equidigital number, since it uses as much as digits as its factorization.

380221648578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 380221648578 in words is "three hundred eighty billion, two hundred twenty-one million, six hundred forty-eight thousand, five hundred seventy-eight".