11280998187 has 6 divisors (see below), whose sum is σ = 16294775172. Its totient is φ = 7520665452.

The previous prime is 11280998137. The next prime is 11280998207. The reversal of 11280998187 is 78189908211.

11280998187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11280998187 - 2¹⁶ = 11280932651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11280998137) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 626722113 + ... + 626722130.

It is an arithmetic number, because the mean of its divisors is an integer number (2715795862).

Almost surely, 2^11280998187 is an apocalyptic number.

11280998187 is a deficient number, since it is larger than the sum of its proper divisors (5013776985).

11280998187 is a wasteful number, since it uses less digits than its factorization.

11280998187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253444249 (or 1253444246 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 54.

The spelling of 11280998187 in words is "eleven billion, two hundred eighty million, nine hundred ninety-eight thousand, one hundred eighty-seven".