6427775623 has 2 divisors, whose sum is σ = 6427775624. Its totient is φ = 6427775622.

The previous prime is 6427775617. The next prime is 6427775647. The reversal of 6427775623 is 3265777246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6427775623 - 2⁹ = 6427775111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6427775323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213887811 + 3213887812.

It is an arithmetic number, because the mean of its divisors is an integer number (3213887812).

Almost surely, 2^6427775623 is an apocalyptic number.

6427775623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427775623 is an equidigital number, since it uses as much as digits as its factorization.

6427775623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 49.

The square root of 6427775623 is about 80173.4097004736. The cubic root of 6427775623 is about 1859.3175535251.

The spelling of 6427775623 in words is "six billion, four hundred twenty-seven million, seven hundred seventy-five thousand, six hundred twenty-three".