1144890868563 has 12 divisors (see below), whose sum is σ = 1780941351280. Its totient is φ = 704548226736.

The previous prime is 1144890868549. The next prime is 1144890868567. The reversal of 1144890868563 is 3658680984411.

1144890868563 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 8 + 9 + 0 + 8 + 68 + 563 = 666.

It is not a de Polignac number, because 1144890868563 - 2¹³ = 1144890860371 is a prime.

It is a super-3 number, since 3×1144890868563³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144890868563.

It is not an unprimeable number, because it can be changed into a prime (1144890868567) 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, 4892695903 + ... + 4892696136.

Almost surely, 2^{1144890868563} is an apocalyptic number.

1144890868563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144890868563 is a deficient number, since it is larger than the sum of its proper divisors (636050482717).

1144890868563 is a wasteful number, since it uses less digits than its factorization.

1144890868563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9785392058 (or 9785392055 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 1144890868563 in words is "one trillion, one hundred forty-four billion, eight hundred ninety million, eight hundred sixty-eight thousand, five hundred sixty-three".