6427733261 has 2 divisors, whose sum is σ = 6427733262. Its totient is φ = 6427733260.

The previous prime is 6427733219. The next prime is 6427733281. The reversal of 6427733261 is 1623377246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6339185161 + 88548100 = 79619^2 + 9410^2 .

It is a cyclic number.

It is not a de Polignac number, because 6427733261 - 2⁶ = 6427733197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6427733281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213866630 + 3213866631.

It is an arithmetic number, because the mean of its divisors is an integer number (3213866631).

Almost surely, 2^6427733261 is an apocalyptic number.

It is an amenable number.

6427733261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427733261 is an equidigital number, since it uses as much as digits as its factorization.

6427733261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 41.

The square root of 6427733261 is about 80173.1455102019. The cubic root of 6427733261 is about 1859.3134689300.

The spelling of 6427733261 in words is "six billion, four hundred twenty-seven million, seven hundred thirty-three thousand, two hundred sixty-one".