1138384485128 has 64 divisors (see below), whose sum is σ = 2335867632000. Its totient is φ = 515815672320.

The previous prime is 1138384485113. The next prime is 1138384485143. The reversal of 1138384485128 is 8215844838311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1138384485113) and next prime (1138384485143).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40141898 + ... + 40170246.

It is an arithmetic number, because the mean of its divisors is an integer number (36497931750).

Almost surely, 2^{1138384485128} is an apocalyptic number.

It is an amenable number.

1138384485128 is an abundant number, since it is smaller than the sum of its proper divisors (1197483146872).

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

1138384485128 is a wasteful number, since it uses less digits than its factorization.

1138384485128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29790 (or 29786 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 56.

The spelling of 1138384485128 in words is "one trillion, one hundred thirty-eight billion, three hundred eighty-four million, four hundred eighty-five thousand, one hundred twenty-eight".