11438811045 has 24 divisors (see below), whose sum is σ = 19829811456. Its totient is φ = 6099918048.

The previous prime is 11438811017. The next prime is 11438811047. The reversal of 11438811045 is 54011883411.

It is a de Polignac number, because none of the positive numbers 2^k-11438811045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438811047) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 575544 + ... + 595086.

It is an arithmetic number, because the mean of its divisors is an integer number (826242144).

Almost surely, 2^11438811045 is an apocalyptic number.

11438811045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11438811045 is a deficient number, since it is larger than the sum of its proper divisors (8391000411).

11438811045 is a wasteful number, since it uses less digits than its factorization.

11438811045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32561 (or 32558 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

It can be divided in two parts, 1143 and 8811045, that added together give a palindrome (8812188).

The spelling of 11438811045 in words is "eleven billion, four hundred thirty-eight million, eight hundred eleven thousand, forty-five".