485638979616 has 216 divisors, whose sum is σ = 1658335521024. Its totient is φ = 134277937920.

The previous prime is 485638979603. The next prime is 485638979621. The reversal of 485638979616 is 616979836584.

485638979616 is a `hidden beast` number, since 48 + 563 + 8 + 9 + 7 + 9 + 6 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 117580 + ... + 992523.

It is an arithmetic number, because the mean of its divisors is an integer number (7677479264).

Almost surely, 2^485638979616 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 485638979616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829167760512).

485638979616 is an abundant number, since it is smaller than the sum of its proper divisors (1172696541408).

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

485638979616 is a wasteful number, since it uses less digits than its factorization.

485638979616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110164 (or 1110146 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 485638979616 in words is "four hundred eighty-five billion, six hundred thirty-eight million, nine hundred seventy-nine thousand, six hundred sixteen".