6601963843 has 2 divisors, whose sum is σ = 6601963844. Its totient is φ = 6601963842.

The previous prime is 6601963813. The next prime is 6601963847. The reversal of 6601963843 is 3483691066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6601963843 - 2⁵ = 6601963811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6601963793 and 6601963802.

It is not a weakly prime, because it can be changed into another prime (6601963847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300981921 + 3300981922.

It is an arithmetic number, because the mean of its divisors is an integer number (3300981922).

Almost surely, 2^6601963843 is an apocalyptic number.

6601963843 is a deficient number, since it is larger than the sum of its proper divisors (1).

6601963843 is an equidigital number, since it uses as much as digits as its factorization.

6601963843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 6601963843 is about 81252.4697655401. The cubic root of 6601963843 is about 1875.9634840092.

The spelling of 6601963843 in words is "six billion, six hundred one million, nine hundred sixty-three thousand, eight hundred forty-three".