1148786256863 has 12 divisors (see below), whose sum is σ = 1338813362952. Its totient is φ = 982853812080.

The previous prime is 1148786256853. The next prime is 1148786256869. The reversal of 1148786256863 is 3686526878411.

It is not a de Polignac number, because 1148786256863 - 2¹⁰ = 1148786255839 is a prime.

It is a super-2 number, since 2×1148786256863² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1148786256863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148786256869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21641345 + ... + 21694362.

It is an arithmetic number, because the mean of its divisors is an integer number (111567780246).

Almost surely, 2^{1148786256863} is an apocalyptic number.

1148786256863 is a deficient number, since it is larger than the sum of its proper divisors (190027106089).

1148786256863 is an equidigital number, since it uses as much as digits as its factorization.

1148786256863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43336262 (or 43336255 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 65.

The spelling of 1148786256863 in words is "one trillion, one hundred forty-eight billion, seven hundred eighty-six million, two hundred fifty-six thousand, eight hundred sixty-three".