986242518991 has 16 divisors (see below), whose sum is σ = 1049683906656. Its totient is φ = 923405285376.

The previous prime is 986242518979. The next prime is 986242519027. The reversal of 986242518991 is 199815242689.

It is a cyclic number.

It is not a de Polignac number, because 986242518991 - 2⁵ = 986242518959 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 (986242518901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44520580 + ... + 44542726.

It is an arithmetic number, because the mean of its divisors is an integer number (65605244166).

Almost surely, 2^986242518991 is an apocalyptic number.

986242518991 is a deficient number, since it is larger than the sum of its proper divisors (63441387665).

986242518991 is a wasteful number, since it uses less digits than its factorization.

986242518991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35658.

The product of its digits is 22394880, while the sum is 64.

The spelling of 986242518991 in words is "nine hundred eighty-six billion, two hundred forty-two million, five hundred eighteen thousand, nine hundred ninety-one".