1138681637512 has 32 divisors (see below), whose sum is σ = 2140387159680. Its totient is φ = 567913032000.

The previous prime is 1138681637491. The next prime is 1138681637543. The reversal of 1138681637512 is 2157361868311.

It is a self number, because there is not a number n which added to its sum of digits gives 1138681637512.

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, 7003137 + ... + 7163887.

It is an arithmetic number, because the mean of its divisors is an integer number (66887098740).

Almost surely, 2^{1138681637512} is an apocalyptic number.

It is an amenable number.

1138681637512 is a deficient number, since it is larger than the sum of its proper divisors (1001705522168).

1138681637512 is a wasteful number, since it uses less digits than its factorization.

1138681637512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162973 (or 162969 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 1138681637512 in words is "one trillion, one hundred thirty-eight billion, six hundred eighty-one million, six hundred thirty-seven thousand, five hundred twelve".