6982357938561 has 12 divisors (see below), whose sum is σ = 10085677939792. Its totient is φ = 4654882304856.

The previous prime is 6982357938553. The next prime is 6982357938623. The reversal of 6982357938561 is 1658397532896.

6982357938561 is a `hidden beast` number, since 6 + 9 + 8 + 2 + 3 + 57 + 9 + 3 + 8 + 561 = 666.

6982357938561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6982357938561 - 2³ = 6982357938553 is a prime.

It is a super-3 number, since 3×6982357938561³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6982357938561.

It is not an unprimeable number, because it can be changed into a prime (6982357938511) 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 11 ways as a sum of consecutive naturals, for example, 122190 + ... + 3738936.

Almost surely, 2^{6982357938561} is an apocalyptic number.

It is an amenable number.

6982357938561 is a deficient number, since it is larger than the sum of its proper divisors (3103320001231).

6982357938561 is a wasteful number, since it uses less digits than its factorization.

6982357938561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831260 (or 3831257 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 72.

The spelling of 6982357938561 in words is "six trillion, nine hundred eighty-two billion, three hundred fifty-seven million, nine hundred thirty-eight thousand, five hundred sixty-one".