6979837261 has 2 divisors, whose sum is σ = 6979837262. Its totient is φ = 6979837260.

The previous prime is 6979837243. The next prime is 6979837273. The reversal of 6979837261 is 1627389796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4238791236 + 2741046025 = 65106^2 + 52355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6979837261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6979837196 and 6979837205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6979837231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489918630 + 3489918631.

It is an arithmetic number, because the mean of its divisors is an integer number (3489918631).

Almost surely, 2^6979837261 is an apocalyptic number.

It is an amenable number.

6979837261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979837261 is an equidigital number, since it uses as much as digits as its factorization.

6979837261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 58.

The square root of 6979837261 is about 83545.4203472578. The cubic root of 6979837261 is about 1911.0927530723.

The spelling of 6979837261 in words is "six billion, nine hundred seventy-nine million, eight hundred thirty-seven thousand, two hundred sixty-one".