388500850000 has 60 divisors (see below), whose sum is σ = 940840399548. Its totient is φ = 155400320000.

The previous prime is 388500849959. The next prime is 388500850019. The reversal of 388500850000 is 58005883.

It can be written as a sum of positive squares in 6 ways, for example, as 229759166224 + 158741683776 = 479332^2 + 398424^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3835009 + ... + 3935008.

Almost surely, 2^388500850000 is an apocalyptic number.

It is an amenable number.

388500850000 is an abundant number, since it is smaller than the sum of its proper divisors (552339549548).

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

388500850000 is an frugal number, since it uses more digits than its factorization.

388500850000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770050 (or 7770024 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

Adding to 388500850000 its reverse (58005883), we get a palindrome (388558855883).

The spelling of 388500850000 in words is "three hundred eighty-eight billion, five hundred million, eight hundred fifty thousand".