18075888987 has 48 divisors (see below), whose sum is σ = 26513625600. Its totient is φ = 10947695616.

The previous prime is 18075888949. The next prime is 18075889031. The reversal of 18075888987 is 78988857081.

It is not a de Polignac number, because 18075888987 - 2²⁴ = 18059111771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18075888937) 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 47 ways as a sum of consecutive naturals, for example, 9785698 + ... + 9787544.

It is an arithmetic number, because the mean of its divisors is an integer number (552367200).

Almost surely, 2^18075888987 is an apocalyptic number.

18075888987 is a deficient number, since it is larger than the sum of its proper divisors (8437736613).

18075888987 is a wasteful number, since it uses less digits than its factorization.

18075888987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 69.

It can be divided in two parts, 180758 and 88987, that added together give a triangular number (269745 = T₇₃₄).

The spelling of 18075888987 in words is "eighteen billion, seventy-five million, eight hundred eighty-eight thousand, nine hundred eighty-seven".