1138863648875 has 32 divisors (see below), whose sum is σ = 1448502082560. Its totient is φ = 893663971200.

The previous prime is 1138863648859. The next prime is 1138863648907. The reversal of 1138863648875 is 5788463688311.

It is not a de Polignac number, because 1138863648875 - 2⁴ = 1138863648859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27532709 + ... + 27574041.

It is an arithmetic number, because the mean of its divisors is an integer number (45265690080).

Almost surely, 2^{1138863648875} is an apocalyptic number.

1138863648875 is a deficient number, since it is larger than the sum of its proper divisors (309638433685).

1138863648875 is an equidigital number, since it uses as much as digits as its factorization.

1138863648875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45560 (or 45550 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 68.

The spelling of 1138863648875 in words is "one trillion, one hundred thirty-eight billion, eight hundred sixty-three million, six hundred forty-eight thousand, eight hundred seventy-five".