11599987851 has 12 divisors (see below), whose sum is σ = 16773432312. Its totient is φ = 7725066336.

The previous prime is 11599987843. The next prime is 11599987871. The reversal of 11599987851 is 15878999511.

11599987851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11599987851 - 2³ = 11599987843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11599987801) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 679341 + ... + 696206.

It is an arithmetic number, because the mean of its divisors is an integer number (1397786026).

Almost surely, 2^11599987851 is an apocalyptic number.

11599987851 is a deficient number, since it is larger than the sum of its proper divisors (5173444461).

11599987851 is a wasteful number, since it uses less digits than its factorization.

11599987851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376490 (or 1376487 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 63.

The spelling of 11599987851 in words is "eleven billion, five hundred ninety-nine million, nine hundred eighty-seven thousand, eight hundred fifty-one".