11635442420 has 24 divisors (see below), whose sum is σ = 27925062144. Its totient is φ = 3989294496.

The previous prime is 11635442411. The next prime is 11635442431. The reversal of 11635442420 is 2424453611.

11635442420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 41555012 + ... + 41555291.

It is an arithmetic number, because the mean of its divisors is an integer number (1163544256).

Almost surely, 2^11635442420 is an apocalyptic number.

11635442420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11635442420 is an abundant number, since it is smaller than the sum of its proper divisors (16289619724).

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

11635442420 is a wasteful number, since it uses less digits than its factorization.

11635442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83110319 (or 83110317 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 11635442420 in words is "eleven billion, six hundred thirty-five million, four hundred forty-two thousand, four hundred twenty".