21936079532 has 12 divisors (see below), whose sum is σ = 38398057656. Its totient is φ = 10965205920.

The previous prime is 21936079531. The next prime is 21936079537. The reversal of 21936079532 is 23597063912.

It is not an unprimeable number, because it can be changed into a prime (21936079531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 690998 + ... + 722045.

It is an arithmetic number, because the mean of its divisors is an integer number (3199838138).

Almost surely, 2^21936079532 is an apocalyptic number.

It is an amenable number.

21936079532 is a deficient number, since it is larger than the sum of its proper divisors (16461978124).

21936079532 is a wasteful number, since it uses less digits than its factorization.

21936079532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416928 (or 1416926 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 47.

It can be divided in two parts, 219360 and 79532, that added together give a palindrome (298892).

The spelling of 21936079532 in words is "twenty-one billion, nine hundred thirty-six million, seventy-nine thousand, five hundred thirty-two".