27355519816 has 16 divisors (see below), whose sum is σ = 51588085500. Its totient is φ = 13598697024.

The previous prime is 27355519771. The next prime is 27355519817. The reversal of 27355519816 is 61891555372.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24790502500 + 2565017316 = 157450^2 + 50646^2 .

It is not an unprimeable number, because it can be changed into a prime (27355519817) 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, 9881391 + ... + 9884158.

Almost surely, 2^27355519816 is an apocalyptic number.

It is an amenable number.

27355519816 is a deficient number, since it is larger than the sum of its proper divisors (24232565684).

27355519816 is a wasteful number, since it uses less digits than its factorization.

27355519816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19765728 (or 19765724 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 52.

The spelling of 27355519816 in words is "twenty-seven billion, three hundred fifty-five million, five hundred nineteen thousand, eight hundred sixteen".