387989385696 has 480 divisors, whose sum is σ = 1326255638400. Its totient is φ = 110029777920.

The previous prime is 387989385683. The next prime is 387989385701. The reversal of 387989385696 is 696583989783.

387989385696 is a `hidden beast` number, since 3 + 8 + 79 + 89 + 385 + 6 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

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 79 ways as a sum of consecutive naturals, for example, 44959110 + ... + 44967738.

It is an arithmetic number, because the mean of its divisors is an integer number (2763032580).

Almost surely, 2^387989385696 is an apocalyptic number.

387989385696 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 387989385696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663127819200).

387989385696 is an abundant number, since it is smaller than the sum of its proper divisors (938266252704).

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

387989385696 is a wasteful number, since it uses less digits than its factorization.

387989385696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8764 (or 8747 counting only the distinct ones).

The product of its digits is 4232632320, while the sum is 81.

The spelling of 387989385696 in words is "three hundred eighty-seven billion, nine hundred eighty-nine million, three hundred eighty-five thousand, six hundred ninety-six".