1158238868510 has 32 divisors (see below), whose sum is σ = 2113643440800. Its totient is φ = 456894079488.

The previous prime is 1158238868491. The next prime is 1158238868513. The reversal of 1158238868510 is 158688328511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158238868513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6269441 + ... + 6451539.

It is an arithmetic number, because the mean of its divisors is an integer number (66051357525).

Almost surely, 2^{1158238868510} is an apocalyptic number.

1158238868510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1158238868510 is a deficient number, since it is larger than the sum of its proper divisors (955404572290).

1158238868510 is a wasteful number, since it uses less digits than its factorization.

1158238868510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190892.

The product of its (nonzero) digits is 3686400, while the sum is 56.

The spelling of 1158238868510 in words is "one trillion, one hundred fifty-eight billion, two hundred thirty-eight million, eight hundred sixty-eight thousand, five hundred ten".