982508781331 has 24 divisors (see below), whose sum is σ = 1267952633280. Its totient is φ = 752615110800.

The previous prime is 982508781299. The next prime is 982508781337. The reversal of 982508781331 is 133187805289.

It is not a de Polignac number, because 982508781331 - 2⁵ = 982508781299 is a prime.

It is a super-2 number, since 2×982508781331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (982508781337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15415965 + ... + 15479566.

It is an arithmetic number, because the mean of its divisors is an integer number (52831359720).

Almost surely, 2^982508781331 is an apocalyptic number.

982508781331 is a deficient number, since it is larger than the sum of its proper divisors (285443851949).

982508781331 is a wasteful number, since it uses less digits than its factorization.

982508781331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30895615 (or 30895608 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 982508781331 in words is "nine hundred eighty-two billion, five hundred eight million, seven hundred eighty-one thousand, three hundred thirty-one".