6355723961 has 2 divisors, whose sum is σ = 6355723962. Its totient is φ = 6355723960.

The previous prime is 6355723867. The next prime is 6355723967. The reversal of 6355723961 is 1693275536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5116683961 + 1239040000 = 71531^2 + 35200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6355723961 is a prime.

It is not a weakly prime, because it can be changed into another prime (6355723967) 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, 3177861980 + 3177861981.

It is an arithmetic number, because the mean of its divisors is an integer number (3177861981).

Almost surely, 2^6355723961 is an apocalyptic number.

It is an amenable number.

6355723961 is a deficient number, since it is larger than the sum of its proper divisors (1).

6355723961 is an equidigital number, since it uses as much as digits as its factorization.

6355723961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 47.

The square root of 6355723961 is about 79722.7944881513. The cubic root of 6355723961 is about 1852.3441393648.

The spelling of 6355723961 in words is "six billion, three hundred fifty-five million, seven hundred twenty-three thousand, nine hundred sixty-one".