1158862464 has 80 divisors (see below), whose sum is σ = 3448786770. Its totient is φ = 386284032.

The previous prime is 1158862447. The next prime is 1158862493. The reversal of 1158862464 is 4642688511.

It is a happy number.

1158862464 is a `hidden beast` number, since 1 + 1 + 588 + 6 + 2 + 4 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1101708864 + 57153600 = 33192^2 + 7560^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 45519 + ... + 66254.

Almost surely, 2^1158862464 is an apocalyptic number.

It is an amenable number.

1158862464 is an abundant number, since it is smaller than the sum of its proper divisors (2289924306).

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

1158862464 is an equidigital number, since it uses as much as digits as its factorization.

1158862464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111799 (or 111778 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1158862464 is about 34042.0690323018. The cubic root of 1158862464 is about 1050.3740055405.

The spelling of 1158862464 in words is "one billion, one hundred fifty-eight million, eight hundred sixty-two thousand, four hundred sixty-four".