123563544963 has 16 divisors (see below), whose sum is σ = 166921529376. Its totient is φ = 81295441920.

The previous prime is 123563544883. The next prime is 123563544967. The reversal of 123563544963 is 369445365321.

It is not a de Polignac number, because 123563544963 - 2⁹ = 123563544451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123563544967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498718 + ... + 704163.

It is an arithmetic number, because the mean of its divisors is an integer number (10432595586).

Almost surely, 2^123563544963 is an apocalyptic number.

123563544963 is a deficient number, since it is larger than the sum of its proper divisors (43357984413).

123563544963 is a wasteful number, since it uses less digits than its factorization.

123563544963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203334.

The product of its digits is 6998400, while the sum is 51.

The spelling of 123563544963 in words is "one hundred twenty-three billion, five hundred sixty-three million, five hundred forty-four thousand, nine hundred sixty-three".