1042636663 has 2 divisors, whose sum is σ = 1042636664. Its totient is φ = 1042636662.

The previous prime is 1042636657. The next prime is 1042636703. The reversal of 1042636663 is 3666362401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042636663 is a prime.

It is a super-2 number, since 2×1042636663² = 2174182422063551138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042696663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521318331 + 521318332.

It is an arithmetic number, because the mean of its divisors is an integer number (521318332).

Almost surely, 2^1042636663 is an apocalyptic number.

1042636663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042636663 is an equidigital number, since it uses as much as digits as its factorization.

1042636663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 1042636663 is about 32289.8848403025. The cubic root of 1042636663 is about 1014.0148863725.

It can be divided in two parts, 10426 and 36663, that added together give a square (47089 = 217²).

The spelling of 1042636663 in words is "one billion, forty-two million, six hundred thirty-six thousand, six hundred sixty-three".