1263612683 has 2 divisors, whose sum is σ = 1263612684. Its totient is φ = 1263612682.

The previous prime is 1263612653. The next prime is 1263612739. The reversal of 1263612683 is 3862163621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1263612683 - 2⁶ = 1263612619 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1263612653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631806341 + 631806342.

It is an arithmetic number, because the mean of its divisors is an integer number (631806342).

Almost surely, 2^1263612683 is an apocalyptic number.

1263612683 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263612683 is an equidigital number, since it uses as much as digits as its factorization.

1263612683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 1263612683 is about 35547.3301810417. The cubic root of 1263612683 is about 1081.1135870406.

The spelling of 1263612683 in words is "one billion, two hundred sixty-three million, six hundred twelve thousand, six hundred eighty-three".