1388952065238 has 8 divisors (see below), whose sum is σ = 2777904130488. Its totient is φ = 462984021744.

The previous prime is 1388952065233. The next prime is 1388952065243. The reversal of 1388952065238 is 8325602598831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1388952065233) and next prime (1388952065243).

It is a sphenic number, since it is the product of 3 distinct primes.

1388952065238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388952065233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115746005431 + ... + 115746005442.

It is an arithmetic number, because the mean of its divisors is an integer number (347238016311).

Almost surely, 2^{1388952065238} is an apocalyptic number.

1388952065238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1388952065238 is a wasteful number, since it uses less digits than its factorization.

1388952065238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231492010878.

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 1388952065238 in words is "one trillion, three hundred eighty-eight billion, nine hundred fifty-two million, sixty-five thousand, two hundred thirty-eight".