11636344042 has 16 divisors (see below), whose sum is σ = 18660687552. Its totient is φ = 5422760640.

The previous prime is 11636344039. The next prime is 11636344043. The reversal of 11636344042 is 24044363611.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 11636343989 and 11636344007.

It is not an unprimeable number, because it can be changed into a prime (11636344043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657884 + ... + 1664887.

It is an arithmetic number, because the mean of its divisors is an integer number (1166292972).

Almost surely, 2^11636344042 is an apocalyptic number.

11636344042 is a deficient number, since it is larger than the sum of its proper divisors (7024343510).

11636344042 is a wasteful number, since it uses less digits than its factorization.

11636344042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322893.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 11636344042 in words is "eleven billion, six hundred thirty-six million, three hundred forty-four thousand, forty-two".