1108815991475 has 24 divisors (see below), whose sum is σ = 1421388608640. Its totient is φ = 857477664000.

The previous prime is 1108815991463. The next prime is 1108815991553. The reversal of 1108815991475 is 5741995188011.

It is a happy number.

It is not a de Polignac number, because 1108815991475 - 2¹⁶ = 1108815925939 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4850531 + ... + 5073980.

It is an arithmetic number, because the mean of its divisors is an integer number (59224525360).

Almost surely, 2^{1108815991475} is an apocalyptic number.

1108815991475 is a deficient number, since it is larger than the sum of its proper divisors (312572617165).

1108815991475 is a wasteful number, since it uses less digits than its factorization.

1108815991475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9924671 (or 9924666 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 59.

The spelling of 1108815991475 in words is "one trillion, one hundred eight billion, eight hundred fifteen million, nine hundred ninety-one thousand, four hundred seventy-five".