27712989550 has 12 divisors (see below), whose sum is σ = 51546160656. Its totient is φ = 11085195800.

The previous prime is 27712989463. The next prime is 27712989559. The reversal of 27712989550 is 5598921772.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27712989491 and 27712989500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27712989559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277129846 + ... + 277129945.

It is an arithmetic number, because the mean of its divisors is an integer number (4295513388).

Almost surely, 2^27712989550 is an apocalyptic number.

27712989550 is a deficient number, since it is larger than the sum of its proper divisors (23833171106).

27712989550 is a wasteful number, since it uses less digits than its factorization.

27712989550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554259803 (or 554259798 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 27712989550 in words is "twenty-seven billion, seven hundred twelve million, nine hundred eighty-nine thousand, five hundred fifty".