11827019436 has 24 divisors (see below), whose sum is σ = 28486585344. Its totient is φ = 3815167440.

The previous prime is 11827019423. The next prime is 11827019447. The reversal of 11827019436 is 63491072811.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15896160 + ... + 15896903.

It is an arithmetic number, because the mean of its divisors is an integer number (1186941056).

Almost surely, 2^11827019436 is an apocalyptic number.

It is an amenable number.

11827019436 is an abundant number, since it is smaller than the sum of its proper divisors (16659565908).

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

11827019436 is a wasteful number, since it uses less digits than its factorization.

11827019436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793101 (or 31793099 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 11827019436 in words is "eleven billion, eight hundred twenty-seven million, nineteen thousand, four hundred thirty-six".