387855000000 has 1344 divisors, whose sum is σ = 1634128629120. Its totient is φ = 89856000000.

The previous prime is 387854999989. The next prime is 387855000011. The reversal of 387855000000 is 558783.

It is a happy number.

387855000000 is a `hidden beast` number, since 38 + 78 + 550 + 0 + 0 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (387854999989) and next prime (387855000011).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 22814999992 + ... + 22815000008.

Almost surely, 2^387855000000 is an apocalyptic number.

387855000000 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 387855000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817064314560).

387855000000 is an abundant number, since it is smaller than the sum of its proper divisors (1246273629120).

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

387855000000 is an frugal number, since it uses more digits than its factorization.

387855000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 387855000000 its reverse (558783), we get a palindrome (387855558783).

The spelling of 387855000000 in words is "three hundred eighty-seven billion, eight hundred fifty-five million", and thus it is an aban number.