1158547968 has 160 divisors (see below), whose sum is σ = 3510936000. Its totient is φ = 377008128.

The previous prime is 1158547963. The next prime is 1158547969. The reversal of 1158547968 is 8697458511.

It is a happy number.

1158547968 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 547 + 96 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1158547963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593458 + ... + 595406.

It is an arithmetic number, because the mean of its divisors is an integer number (21943350).

Almost surely, 2^1158547968 is an apocalyptic number.

1158547968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158547968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755468000).

1158547968 is an abundant number, since it is smaller than the sum of its proper divisors (2352388032).

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

1158547968 is an equidigital number, since it uses as much as digits as its factorization.

1158547968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 1997 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 1158547968 is about 34037.4494931686. The cubic root of 1158547968 is about 1050.2789789316.

The spelling of 1158547968 in words is "one billion, one hundred fifty-eight million, five hundred forty-seven thousand, nine hundred sixty-eight".