4491870536187 has 6 divisors (see below), whose sum is σ = 6488257441172. Its totient is φ = 2994580357452.

The previous prime is 4491870536173. The next prime is 4491870536191. The reversal of 4491870536187 is 7816350781944.

4491870536187 is a `hidden beast` number, since 4 + 4 + 9 + 1 + 8 + 7 + 0 + 5 + 3 + 618 + 7 = 666.

It is not a de Polignac number, because 4491870536187 - 2⁶ = 4491870536123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491870536107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249548363113 + ... + 249548363130.

Almost surely, 2^{4491870536187} is an apocalyptic number.

4491870536187 is a deficient number, since it is larger than the sum of its proper divisors (1996386904985).

4491870536187 is a wasteful number, since it uses less digits than its factorization.

4491870536187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499096726249 (or 499096726246 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 4491870536187 in words is "four trillion, four hundred ninety-one billion, eight hundred seventy million, five hundred thirty-six thousand, one hundred eighty-seven".