387331542738 has 432 divisors, whose sum is σ = 1067683780800. Its totient is φ = 104854647744.

The previous prime is 387331542721. The next prime is 387331542739. The reversal of 387331542738 is 837245133783.

387331542738 is a `hidden beast` number, since 38 + 7 + 3 + 31 + 542 + 7 + 38 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (387331542739) by changing a digit.

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 215 ways as a sum of consecutive naturals, for example, 1946389563 + ... + 1946389761.

Almost surely, 2^387331542738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387331542738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533841890400).

387331542738 is an abundant number, since it is smaller than the sum of its proper divisors (680352238062).

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

387331542738 is a wasteful number, since it uses less digits than its factorization.

387331542738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 295 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The spelling of 387331542738 in words is "three hundred eighty-seven billion, three hundred thirty-one million, five hundred forty-two thousand, seven hundred thirty-eight".