387840504000 has 448 divisors, whose sum is σ = 1325767053312. Its totient is φ = 99800064000.

The previous prime is 387840503983. The next prime is 387840504001. The reversal of 387840504000 is 405048783.

It is a self number, because there is not a number n which added to its sum of digits gives 387840504000.

It is not an unprimeable number, because it can be changed into a prime (387840504001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406967524 + ... + 406968476.

Almost surely, 2^387840504000 is an apocalyptic number.

387840504000 is a gapful number since it is divisible by the number (30) 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 387840504000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662883526656).

387840504000 is an abundant number, since it is smaller than the sum of its proper divisors (937926549312).

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

387840504000 is a wasteful number, since it uses less digits than its factorization.

387840504000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 387840504000 in words is "three hundred eighty-seven billion, eight hundred forty million, five hundred four thousand".