1438386381006 has 32 divisors (see below), whose sum is σ = 2888898566400. Its totient is φ = 477444142656.

The previous prime is 1438386380989. The next prime is 1438386381031. The reversal of 1438386381006 is 6001836838341.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1438386381006.

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 15 ways as a sum of consecutive naturals, for example, 1560055 + ... + 2304461.

It is an arithmetic number, because the mean of its divisors is an integer number (90278080200).

Almost surely, 2^{1438386381006} is an apocalyptic number.

1438386381006 is an abundant number, since it is smaller than the sum of its proper divisors (1450512185394).

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

1438386381006 is a wasteful number, since it uses less digits than its factorization.

1438386381006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745768.

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 1438386381006 in words is "one trillion, four hundred thirty-eight billion, three hundred eighty-six million, three hundred eighty-one thousand, six".