1563468883138 has 4 divisors (see below), whose sum is σ = 2345203324710. Its totient is φ = 781734441568.

The previous prime is 1563468883121. The next prime is 1563468883139. The reversal of 1563468883138 is 8313888643651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1561482665649 + 1986217489 = 1249593^2 + 44567^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1563468883138.

It is not an unprimeable number, because it can be changed into a prime (1563468883139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390867220783 + ... + 390867220786.

Almost surely, 2^{1563468883138} is an apocalyptic number.

1563468883138 is a deficient number, since it is larger than the sum of its proper divisors (781734441572).

1563468883138 is an equidigital number, since it uses as much as digits as its factorization.

1563468883138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781734441571.

The product of its digits is 79626240, while the sum is 64.

The spelling of 1563468883138 in words is "one trillion, five hundred sixty-three billion, four hundred sixty-eight million, eight hundred eighty-three thousand, one hundred thirty-eight".