1042786663 has 2 divisors, whose sum is σ = 1042786664. Its totient is φ = 1042786662.

The previous prime is 1042786639. The next prime is 1042786733. The reversal of 1042786663 is 3666872401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042786663 - 2⁵ = 1042786631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042786963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521393331 + 521393332.

It is an arithmetic number, because the mean of its divisors is an integer number (521393332).

Almost surely, 2^1042786663 is an apocalyptic number.

1042786663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042786663 is an equidigital number, since it uses as much as digits as its factorization.

1042786663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1042786663 is about 32292.2074655791. The cubic root of 1042786663 is about 1014.0635114736.

The spelling of 1042786663 in words is "one billion, forty-two million, seven hundred eighty-six thousand, six hundred sixty-three".