6961020961 has 2 divisors, whose sum is σ = 6961020962. Its totient is φ = 6961020960.

The previous prime is 6961020949. The next prime is 6961020967. The reversal of 6961020961 is 1690201696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3834086400 + 3126934561 = 61920^2 + 55919^2 .

It is a cyclic number.

It is not a de Polignac number, because 6961020961 - 2⁵ = 6961020929 is a prime.

It is not a weakly prime, because it can be changed into another prime (6961020967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480510480 + 3480510481.

It is an arithmetic number, because the mean of its divisors is an integer number (3480510481).

Almost surely, 2^6961020961 is an apocalyptic number.

It is an amenable number.

6961020961 is a deficient number, since it is larger than the sum of its proper divisors (1).

6961020961 is an equidigital number, since it uses as much as digits as its factorization.

6961020961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 6961020961 is about 83432.7331507245. The cubic root of 6961020961 is about 1909.3738946337.

The spelling of 6961020961 in words is "six billion, nine hundred sixty-one million, twenty thousand, nine hundred sixty-one".