1338987574144 has 64 divisors (see below), whose sum is σ = 2910655782000. Its totient is φ = 608496824320.

The previous prime is 1338987574117. The next prime is 1338987574151. The reversal of 1338987574144 is 4414757898331.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (64).

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 7 ways as a sum of consecutive naturals, for example, 6443514 + ... + 6648070.

Almost surely, 2^{1338987574144} is an apocalyptic number.

It is an amenable number.

1338987574144 is an abundant number, since it is smaller than the sum of its proper divisors (1571668207856).

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

1338987574144 is a wasteful number, since it uses less digits than its factorization.

1338987574144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209231 (or 209219 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 64.

The spelling of 1338987574144 in words is "one trillion, three hundred thirty-eight billion, nine hundred eighty-seven million, five hundred seventy-four thousand, one hundred forty-four".