11954818652 has 24 divisors (see below), whose sum is σ = 24949188096. Its totient is φ = 4900732848.

The previous prime is 11954818651. The next prime is 11954818657. The reversal of 11954818652 is 25681845911.

It is a self number, because there is not a number n which added to its sum of digits gives 11954818652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11954818651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9281048 + ... + 9282335.

It is an arithmetic number, because the mean of its divisors is an integer number (1039549504).

Almost surely, 2^11954818652 is an apocalyptic number.

It is an amenable number.

11954818652 is an abundant number, since it is smaller than the sum of its proper divisors (12994369444).

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

11954818652 is a wasteful number, since it uses less digits than its factorization.

11954818652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18563417 (or 18563415 counting only the distinct ones).

The product of its digits is 691200, while the sum is 50.

The spelling of 11954818652 in words is "eleven billion, nine hundred fifty-four million, eight hundred eighteen thousand, six hundred fifty-two".