27538489386 has 24 divisors (see below), whose sum is σ = 59770158084. Its totient is φ = 9163584000.

The previous prime is 27538489369. The next prime is 27538489403. The reversal of 27538489386 is 68398483572.

27538489386 is a `hidden beast` number, since 2 + 7 + 538 + 4 + 8 + 93 + 8 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (27538489369) and next prime (27538489403).

It can be written as a sum of positive squares in 2 ways, for example, as 22704763761 + 4833725625 = 150681^2 + 69525^2 .

It is a super-3 number, since 3×27538489386³ (a number of 32 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1315365 + ... + 1336136.

Almost surely, 2^27538489386 is an apocalyptic number.

27538489386 is an abundant number, since it is smaller than the sum of its proper divisors (32231668698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27538489386 is a wasteful number, since it uses less digits than its factorization.

27538489386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652086 (or 2652083 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 27538489386 in words is "twenty-seven billion, five hundred thirty-eight million, four hundred eighty-nine thousand, three hundred eighty-six".