2785566023 has 2 divisors, whose sum is σ = 2785566024. Its totient is φ = 2785566022.

The previous prime is 2785566019. The next prime is 2785566073. The reversal of 2785566023 is 3206655872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2785566023 - 2² = 2785566019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785566073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392783011 + 1392783012.

It is an arithmetic number, because the mean of its divisors is an integer number (1392783012).

Almost surely, 2^2785566023 is an apocalyptic number.

2785566023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785566023 is an equidigital number, since it uses as much as digits as its factorization.

2785566023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 2785566023 is about 52778.4617339308. The cubic root of 2785566023 is about 1407.0336549929.

The spelling of 2785566023 in words is "two billion, seven hundred eighty-five million, five hundred sixty-six thousand, twenty-three".