1144868381000 has 64 divisors (see below), whose sum is σ = 2705001886080. Its totient is φ = 453501220800.

The previous prime is 1144868380993. The next prime is 1144868381051. The reversal of 1144868381000 is 1838684411.

It is a super-2 number, since 2×1144868381000² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5454614 + ... + 5660613.

It is an arithmetic number, because the mean of its divisors is an integer number (42265654470).

Almost surely, 2^{1144868381000} is an apocalyptic number.

1144868381000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144868381000 is an abundant number, since it is smaller than the sum of its proper divisors (1560133505080).

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

1144868381000 is a wasteful number, since it uses less digits than its factorization.

1144868381000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115351 (or 11115337 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 1144868381000 in words is "one trillion, one hundred forty-four billion, eight hundred sixty-eight million, three hundred eighty-one thousand".