6978934531 has 2 divisors, whose sum is σ = 6978934532. Its totient is φ = 6978934530.

The previous prime is 6978934447. The next prime is 6978934541. The reversal of 6978934531 is 1354398796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6978934531 - 2¹¹ = 6978932483 is a prime.

It is a super-2 number, since 2×6978934531² = 97411054375968379922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6978934541) 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 as a sum of consecutive naturals, namely, 3489467265 + 3489467266.

It is an arithmetic number, because the mean of its divisors is an integer number (3489467266).

Almost surely, 2^6978934531 is an apocalyptic number.

6978934531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978934531 is an equidigital number, since it uses as much as digits as its factorization.

6978934531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 55.

The square root of 6978934531 is about 83540.0175424928. The cubic root of 6978934531 is about 1911.0103597882.

The spelling of 6978934531 in words is "six billion, nine hundred seventy-eight million, nine hundred thirty-four thousand, five hundred thirty-one".