11969374563 has 8 divisors (see below), whose sum is σ = 17732406800. Its totient is φ = 7979583024.

The previous prime is 11969374561. The next prime is 11969374579. The reversal of 11969374563 is 36547396911.

11969374563 is a `hidden beast` number, since 1 + 1 + 9 + 6 + 9 + 3 + 74 + 563 = 666.

11969374563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11969374563 - 2¹ = 11969374561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11969374561) 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 7 ways as a sum of consecutive naturals, for example, 221655058 + ... + 221655111.

It is an arithmetic number, because the mean of its divisors is an integer number (2216550850).

Almost surely, 2^11969374563 is an apocalyptic number.

11969374563 is a deficient number, since it is larger than the sum of its proper divisors (5763032237).

11969374563 is an equidigital number, since it uses as much as digits as its factorization.

11969374563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443310178 (or 443310172 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 11969374563 in words is "eleven billion, nine hundred sixty-nine million, three hundred seventy-four thousand, five hundred sixty-three".