1563230438851 has 2 divisors, whose sum is σ = 1563230438852. Its totient is φ = 1563230438850.

The previous prime is 1563230438789. The next prime is 1563230438893. The reversal of 1563230438851 is 1588340323651.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1563230438851 - 2²¹ = 1563228341699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1563230438795 and 1563230438804.

It is not a weakly prime, because it can be changed into another prime (1563230438251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781615219425 + 781615219426.

It is an arithmetic number, because the mean of its divisors is an integer number (781615219426).

Almost surely, 2^{1563230438851} is an apocalyptic number.

1563230438851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563230438851 is an equidigital number, since it uses as much as digits as its factorization.

1563230438851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 1563230438851 in words is "one trillion, five hundred sixty-three billion, two hundred thirty million, four hundred thirty-eight thousand, eight hundred fifty-one".