1127844864 has 264 divisors, whose sum is σ = 3556375920. Its totient is φ = 353009664.

The previous prime is 1127844863. The next prime is 1127844871. The reversal of 1127844864 is 4684487211.

It is not an unprimeable number, because it can be changed into a prime (1127844863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9980872 + ... + 9980984.

Almost surely, 2^1127844864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1127844864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778187960).

1127844864 is an abundant number, since it is smaller than the sum of its proper divisors (2428531056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1127844864 is a wasteful number, since it uses less digits than its factorization.

1127844864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 137 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 1127844864 is about 33583.4016144881. The cubic root of 1127844864 is about 1040.9178484947.

The spelling of 1127844864 in words is "one billion, one hundred twenty-seven million, eight hundred forty-four thousand, eight hundred sixty-four".