11911430852 has 12 divisors (see below), whose sum is σ = 20950817580. Its totient is φ = 5925482976.

The previous prime is 11911430837. The next prime is 11911430857. The reversal of 11911430852 is 25803411911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11580772996 + 330657856 = 107614^2 + 18184^2 .

It is not an unprimeable number, because it can be changed into a prime (11911430857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7557227 + ... + 7558802.

It is an arithmetic number, because the mean of its divisors is an integer number (1745901465).

Almost surely, 2^11911430852 is an apocalyptic number.

It is an amenable number.

11911430852 is a deficient number, since it is larger than the sum of its proper divisors (9039386728).

11911430852 is a wasteful number, since it uses less digits than its factorization.

11911430852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15116230 (or 15116228 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 11911430852 in words is "eleven billion, nine hundred eleven million, four hundred thirty thousand, eight hundred fifty-two".