27919612436 has 24 divisors (see below), whose sum is σ = 49539065856. Its totient is φ = 13766911200.

The previous prime is 27919612421. The next prime is 27919612447. The reversal of 27919612436 is 63421691972.

It is a congruent number.

It is an unprimeable number.

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, 79715 + ... + 249386.

It is an arithmetic number, because the mean of its divisors is an integer number (2064127744).

Almost surely, 2^27919612436 is an apocalyptic number.

It is an amenable number.

27919612436 is a deficient number, since it is larger than the sum of its proper divisors (21619453420).

27919612436 is a wasteful number, since it uses less digits than its factorization.

27919612436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329399 (or 329397 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The spelling of 27919612436 in words is "twenty-seven billion, nine hundred nineteen million, six hundred twelve thousand, four hundred thirty-six".