1438125081884 has 36 divisors (see below), whose sum is σ = 2701031303376. Its totient is φ = 669787736064.

The previous prime is 1438125081881. The next prime is 1438125081889. The reversal of 1438125081884 is 4881805218341.

It is a happy number.

It is a super-2 number, since 2×1438125081884² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438125081881) 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 11 ways as a sum of consecutive naturals, for example, 6300512 + ... + 6524775.

It is an arithmetic number, because the mean of its divisors is an integer number (75028647316).

Almost surely, 2^{1438125081884} is an apocalyptic number.

It is an amenable number.

1438125081884 is a deficient number, since it is larger than the sum of its proper divisors (1262906221492).

1438125081884 is a wasteful number, since it uses less digits than its factorization.

1438125081884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12825422 (or 12825403 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 53.

The spelling of 1438125081884 in words is "one trillion, four hundred thirty-eight billion, one hundred twenty-five million, eighty-one thousand, eight hundred eighty-four".