11545412499 has 6 divisors (see below), whose sum is σ = 16676706956. Its totient is φ = 7696941660.

The previous prime is 11545412479. The next prime is 11545412513. The reversal of 11545412499 is 99421454511.

11545412499 is a `hidden beast` number, since 1 + 1 + 545 + 4 + 12 + 4 + 99 = 666.

It is not a de Polignac number, because 11545412499 - 2⁵ = 11545412467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11545412479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 641411797 + ... + 641411814.

Almost surely, 2^11545412499 is an apocalyptic number.

11545412499 is a deficient number, since it is larger than the sum of its proper divisors (5131294457).

11545412499 is a wasteful number, since it uses less digits than its factorization.

11545412499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282823617 (or 1282823614 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 11545412499 in words is "eleven billion, five hundred forty-five million, four hundred twelve thousand, four hundred ninety-nine".