488816372538 has 128 divisors (see below), whose sum is σ = 1246225075200. Its totient is φ = 140771929536.

The previous prime is 488816372479. The next prime is 488816372543. The reversal of 488816372538 is 835273618884.

488816372538 is a `hidden beast` number, since 4 + 8 + 88 + 16 + 3 + 7 + 2 + 538 = 666.

It is a super-2 number, since 2×488816372538² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 886281 + ... + 1327827.

It is an arithmetic number, because the mean of its divisors is an integer number (9736133400).

Almost surely, 2^488816372538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 488816372538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623112537600).

488816372538 is an abundant number, since it is smaller than the sum of its proper divisors (757408702662).

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

488816372538 is a wasteful number, since it uses less digits than its factorization.

488816372538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441673 (or 441667 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 488816372538 in words is "four hundred eighty-eight billion, eight hundred sixteen million, three hundred seventy-two thousand, five hundred thirty-eight".