1158891468 has 24 divisors (see below), whose sum is σ = 3090377472. Its totient is φ = 331111824.

The previous prime is 1158891451. The next prime is 1158891469. The reversal of 1158891468 is 8641988511.

It is a self number, because there is not a number n which added to its sum of digits gives 1158891468.

It is not an unprimeable number, because it can be changed into a prime (1158891469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6898080 + ... + 6898247.

It is an arithmetic number, because the mean of its divisors is an integer number (128765728).

Almost surely, 2^1158891468 is an apocalyptic number.

It is an amenable number.

1158891468 is an abundant number, since it is smaller than the sum of its proper divisors (1931486004).

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

1158891468 is a wasteful number, since it uses less digits than its factorization.

1158891468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796341 (or 13796339 counting only the distinct ones).

The product of its digits is 552960, while the sum is 51.

The square root of 1158891468 is about 34042.4950319450. The cubic root of 1158891468 is about 1050.3827683847.

The spelling of 1158891468 in words is "one billion, one hundred fifty-eight million, eight hundred ninety-one thousand, four hundred sixty-eight".