11836386642 has 32 divisors (see below), whose sum is σ = 24924726720. Its totient is φ = 3736903680.

The previous prime is 11836386619. The next prime is 11836386643. The reversal of 11836386642 is 24668363811.

It is a junction number, because it is equal to n+sod(n) for n = 11836386591 and 11836386600.

It is not an unprimeable number, because it can be changed into a prime (11836386643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586642 + ... + 606482.

It is an arithmetic number, because the mean of its divisors is an integer number (778897710).

Almost surely, 2^11836386642 is an apocalyptic number.

11836386642 is an abundant number, since it is smaller than the sum of its proper divisors (13088340078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11836386642 is a wasteful number, since it uses less digits than its factorization.

11836386642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25098.

The product of its digits is 995328, while the sum is 48.

The spelling of 11836386642 in words is "eleven billion, eight hundred thirty-six million, three hundred eighty-six thousand, six hundred forty-two".