83986205131 has 6 divisors (see below), whose sum is σ = 86982146732. Its totient is φ = 81090128280.

The previous prime is 83986205033. The next prime is 83986205167. The reversal of 83986205131 is 13150268938.

It is not a de Polignac number, because 83986205131 - 2⁹ = 83986204619 is a prime.

It is a super-2 number, since 2×83986205131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83986205431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49931505 + ... + 49933186.

Almost surely, 2^83986205131 is an apocalyptic number.

83986205131 is a deficient number, since it is larger than the sum of its proper divisors (2995941601).

83986205131 is an equidigital number, since it uses as much as digits as its factorization.

83986205131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99864749 (or 99864720 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 83986205131 in words is "eighty-three billion, nine hundred eighty-six million, two hundred five thousand, one hundred thirty-one".