1127869911 has 12 divisors (see below), whose sum is σ = 1861880592. Its totient is φ = 644497056.

The previous prime is 1127869907. The next prime is 1127869921. The reversal of 1127869911 is 1199687211.

It is a happy number.

It is not a de Polignac number, because 1127869911 - 2² = 1127869907 is a prime.

It is a super-2 number, since 2×1127869911² = 2544181072278295842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127869921) 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 11 ways as a sum of consecutive naturals, for example, 8951286 + ... + 8951411.

It is an arithmetic number, because the mean of its divisors is an integer number (155156716).

Almost surely, 2^1127869911 is an apocalyptic number.

1127869911 is a deficient number, since it is larger than the sum of its proper divisors (734010681).

1127869911 is a wasteful number, since it uses less digits than its factorization.

1127869911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17902710 (or 17902707 counting only the distinct ones).

The product of its digits is 54432, while the sum is 45.

The square root of 1127869911 is about 33583.7745198481. The cubic root of 1127869911 is about 1040.9255539506.

The spelling of 1127869911 in words is "one billion, one hundred twenty-seven million, eight hundred sixty-nine thousand, nine hundred eleven".