27140136640 has 56 divisors (see below), whose sum is σ = 64933903152. Its totient is φ = 10804577280.

The previous prime is 27140136637. The next prime is 27140136677. The reversal of 27140136640 is 4663104172.

It is a junction number, because it is equal to n+sod(n) for n = 27140136596 and 27140136605.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 133459 + ... + 268498.

Almost surely, 2^27140136640 is an apocalyptic number.

27140136640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27140136640 is an abundant number, since it is smaller than the sum of its proper divisors (37793766512).

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

27140136640 is a wasteful number, since it uses less digits than its factorization.

27140136640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402185 (or 402175 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 27140136640 in words is "twenty-seven billion, one hundred forty million, one hundred thirty-six thousand, six hundred forty".