13561134992 has 40 divisors (see below), whose sum is σ = 26502157176. Its totient is φ = 6722067456.

The previous prime is 13561134943. The next prime is 13561135001. The reversal of 13561134992 is 29943116531.

13561134992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2419065856 + 11142069136 = 49184^2 + 105556^2 .

It is an unprimeable number.

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, 1142078 + ... + 1153890.

Almost surely, 2^13561134992 is an apocalyptic number.

It is an amenable number.

13561134992 is a deficient number, since it is larger than the sum of its proper divisors (12941022184).

13561134992 is a wasteful number, since it uses less digits than its factorization.

13561134992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12435 (or 12429 counting only the distinct ones).

The product of its digits is 174960, while the sum is 44.

The spelling of 13561134992 in words is "thirteen billion, five hundred sixty-one million, one hundred thirty-four thousand, nine hundred ninety-two".