6981582042 has 24 divisors (see below), whose sum is σ = 15134295540. Its totient is φ = 2326034880.

The previous prime is 6981582037. The next prime is 6981582067. The reversal of 6981582042 is 2402851896.

6981582042 is a `hidden beast` number, since 69 + 8 + 1 + 582 + 0 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4490474121 + 2491107921 = 67011^2 + 49911^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59059 + ... + 132102.

Almost surely, 2^6981582042 is an apocalyptic number.

6981582042 is an abundant number, since it is smaller than the sum of its proper divisors (8152713498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6981582042 is a wasteful number, since it uses less digits than its factorization.

6981582042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193198 (or 193195 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 6981582042 is about 83555.8618051421. The cubic root of 6981582042 is about 1911.2519812604.

The spelling of 6981582042 in words is "six billion, nine hundred eighty-one million, five hundred eighty-two thousand, forty-two".