18832205087 has 4 divisors (see below), whose sum is σ = 18969666576. Its totient is φ = 18694743600.

The previous prime is 18832205083. The next prime is 18832205089. The reversal of 18832205087 is 78050223881.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18832205087 - 2² = 18832205083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18832205081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68730539 + ... + 68730812.

It is an arithmetic number, because the mean of its divisors is an integer number (4742416644).

Almost surely, 2^18832205087 is an apocalyptic number.

18832205087 is a deficient number, since it is larger than the sum of its proper divisors (137461489).

18832205087 is a wasteful number, since it uses less digits than its factorization.

18832205087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137461488.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 18832205087 in words is "eighteen billion, eight hundred thirty-two million, two hundred five thousand, eighty-seven".