488651989644 has 288 divisors, whose sum is σ = 1529763755520. Its totient is φ = 128071839744.

The previous prime is 488651989643. The next prime is 488651989673. The reversal of 488651989644 is 446989156884.

488651989644 is a `hidden beast` number, since 48 + 8 + 6 + 519 + 8 + 9 + 64 + 4 = 666.

488651989644 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (488651989643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 525997372 + ... + 525998300.

Almost surely, 2^488651989644 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 488651989644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764881877760).

488651989644 is an abundant number, since it is smaller than the sum of its proper divisors (1041111765876).

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

488651989644 is a wasteful number, since it uses less digits than its factorization.

488651989644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1784 counting only the distinct ones).

The product of its digits is 477757440, while the sum is 72.

The spelling of 488651989644 in words is "four hundred eighty-eight billion, six hundred fifty-one million, nine hundred eighty-nine thousand, six hundred forty-four".