6860000981 has 2 divisors, whose sum is σ = 6860000982. Its totient is φ = 6860000980.

The previous prime is 6860000971. The next prime is 6860001017. The reversal of 6860000981 is 1890000686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4308740881 + 2551260100 = 65641^2 + 50510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6860000981 is a prime.

It is a super-2 number, since 2×6860000981² = 94119226918641924722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6860000921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3430000490 + 3430000491.

It is an arithmetic number, because the mean of its divisors is an integer number (3430000491).

Almost surely, 2^6860000981 is an apocalyptic number.

It is an amenable number.

6860000981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6860000981 is an equidigital number, since it uses as much as digits as its factorization.

6860000981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 6860000981 is about 82825.1228855110. The cubic root of 6860000981 is about 1900.0924221893.

The spelling of 6860000981 in words is "six billion, eight hundred sixty million, nine hundred eighty-one", and thus it is an aban number.