11272019887 has 2 divisors, whose sum is σ = 11272019888. Its totient is φ = 11272019886.

The previous prime is 11272019867. The next prime is 11272019921. The reversal of 11272019887 is 78891027211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11272019887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11272019867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636009943 + 5636009944.

It is an arithmetic number, because the mean of its divisors is an integer number (5636009944).

Almost surely, 2^11272019887 is an apocalyptic number.

11272019887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11272019887 is an equidigital number, since it uses as much as digits as its factorization.

11272019887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 46.

The spelling of 11272019887 in words is "eleven billion, two hundred seventy-two million, nineteen thousand, eight hundred eighty-seven".