11144266987 has 16 divisors (see below), whose sum is σ = 12897100800. Its totient is φ = 9431928000.

The previous prime is 11144266963. The next prime is 11144267021. The reversal of 11144266987 is 78966244111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11144266987 is a prime.

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 11144266987.

It is not an unprimeable number, because it can be changed into a prime (11144266937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455964 + ... + 479782.

It is an arithmetic number, because the mean of its divisors is an integer number (806068800).

Almost surely, 2^11144266987 is an apocalyptic number.

11144266987 is a deficient number, since it is larger than the sum of its proper divisors (1752833813).

11144266987 is an equidigital number, since it uses as much as digits as its factorization.

11144266987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24666.

The product of its digits is 580608, while the sum is 49.

The spelling of 11144266987 in words is "eleven billion, one hundred forty-four million, two hundred sixty-six thousand, nine hundred eighty-seven".