63538552380 has 48 divisors (see below), whose sum is σ = 178751147904. Its totient is φ = 16863309120.

The previous prime is 63538552369. The next prime is 63538552381. The reversal of 63538552380 is 8325583536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63538552381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2496762 + ... + 2522081.

It is an arithmetic number, because the mean of its divisors is an integer number (3723982248).

Almost surely, 2^63538552380 is an apocalyptic number.

63538552380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63538552380 is an abundant number, since it is smaller than the sum of its proper divisors (115212595524).

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

63538552380 is a wasteful number, since it uses less digits than its factorization.

63538552380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019066 (or 5019064 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 63538552380 in words is "sixty-three billion, five hundred thirty-eight million, five hundred fifty-two thousand, three hundred eighty".