11151947889 has 80 divisors (see below), whose sum is σ = 17908805376. Its totient is φ = 6903532800.

The previous prime is 11151947881. The next prime is 11151947903. The reversal of 11151947889 is 98874915111.

11151947889 is a `hidden beast` number, since 1 + 1 + 1 + 519 + 47 + 8 + 89 = 666.

It is not a de Polignac number, because 11151947889 - 2³ = 11151947881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11151947881) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5774254 + ... + 5776184.

Almost surely, 2^11151947889 is an apocalyptic number.

It is an amenable number.

11151947889 is a deficient number, since it is larger than the sum of its proper divisors (6756857487).

11151947889 is a wasteful number, since it uses less digits than its factorization.

11151947889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2059 counting only the distinct ones).

The product of its digits is 725760, while the sum is 54.

The spelling of 11151947889 in words is "eleven billion, one hundred fifty-one million, nine hundred forty-seven thousand, eight hundred eighty-nine".