38578555220 has 24 divisors (see below), whose sum is σ = 81019396584. Its totient is φ = 15430578176.

The previous prime is 38578555123. The next prime is 38578555231. The reversal of 38578555220 is 2255587583.

38578555220 is digitally balanced in base 2, 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 4 ways, for example, as 407555344 + 38170999876 = 20188^2 + 195374^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429764 + ... + 511716.

It is an arithmetic number, because the mean of its divisors is an integer number (3375808191).

Almost surely, 2^38578555220 is an apocalyptic number.

It is an amenable number.

38578555220 is an abundant number, since it is smaller than the sum of its proper divisors (42440841364).

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

38578555220 is a wasteful number, since it uses less digits than its factorization.

38578555220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105499 (or 105497 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 38578555220 in words is "thirty-eight billion, five hundred seventy-eight million, five hundred fifty-five thousand, two hundred twenty".