578055217632 has 96 divisors (see below), whose sum is σ = 1607454525600. Its totient is φ = 181260238848.

The previous prime is 578055217613. The next prime is 578055217669. The reversal of 578055217632 is 236712550875.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3224044 + ... + 3398612.

It is an arithmetic number, because the mean of its divisors is an integer number (16744317975).

Almost surely, 2^578055217632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 578055217632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803727262800).

578055217632 is an abundant number, since it is smaller than the sum of its proper divisors (1029399307968).

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

578055217632 is a wasteful number, since it uses less digits than its factorization.

578055217632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176628 (or 176620 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 578055217632 in words is "five hundred seventy-eight billion, fifty-five million, two hundred seventeen thousand, six hundred thirty-two".