1159436864 has 56 divisors (see below), whose sum is σ = 2384511360. Its totient is φ = 558964224.

The previous prime is 1159436819. The next prime is 1159436893. The reversal of 1159436864 is 4686349511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214742 + ... + 220074.

It is an arithmetic number, because the mean of its divisors is an integer number (42580560).

Almost surely, 2^1159436864 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 1159436864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192255680).

1159436864 is an abundant number, since it is smaller than the sum of its proper divisors (1225074496).

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

1159436864 is an equidigital number, since it uses as much as digits as its factorization.

1159436864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467 (or 5457 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 1159436864 is about 34050.5046071273. The cubic root of 1159436864 is about 1050.5475191346.

The spelling of 1159436864 in words is "one billion, one hundred fifty-nine million, four hundred thirty-six thousand, eight hundred sixty-four".