387488912616 has 320 divisors, whose sum is σ = 1257884646480. Its totient is φ = 110371921920.

The previous prime is 387488912609. The next prime is 387488912617. The reversal of 387488912616 is 616219884783.

387488912616 is a `hidden beast` number, since 3 + 8 + 7 + 4 + 8 + 8 + 9 + 1 + 2 + 616 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 162613788516 + 224875124100 = 403254^2 + 474210^2 .

It is not an unprimeable number, because it can be changed into a prime (387488912617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8713510 + ... + 8757866.

Almost surely, 2^387488912616 is an apocalyptic number.

387488912616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387488912616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628942323240).

387488912616 is an abundant number, since it is smaller than the sum of its proper divisors (870395733864).

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

387488912616 is a wasteful number, since it uses less digits than its factorization.

387488912616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44466 (or 44453 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 387488912616 in words is "three hundred eighty-seven billion, four hundred eighty-eight million, nine hundred twelve thousand, six hundred sixteen".