6949025081 has 2 divisors, whose sum is σ = 6949025082. Its totient is φ = 6949025080.

The previous prime is 6949025071. The next prime is 6949025119. The reversal of 6949025081 is 1805209496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6858489856 + 90535225 = 82816^2 + 9515^2 .

It is a cyclic number.

It is not a de Polignac number, because 6949025081 - 2²² = 6944830777 is a prime.

It is a super-2 number, since 2×6949025081² = 96577899152734113122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6949025071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3474512540 + 3474512541.

It is an arithmetic number, because the mean of its divisors is an integer number (3474512541).

Almost surely, 2^6949025081 is an apocalyptic number.

It is an amenable number.

6949025081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6949025081 is an equidigital number, since it uses as much as digits as its factorization.

6949025081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 6949025081 is about 83360.8126219988. The cubic root of 6949025081 is about 1908.2764603168.

The spelling of 6949025081 in words is "six billion, nine hundred forty-nine million, twenty-five thousand, eighty-one".