27655047540 has 72 divisors (see below), whose sum is σ = 86993917920. Its totient is φ = 7374678048.

The previous prime is 27655047499. The next prime is 27655047587. The reversal of 27655047540 is 4574055672.

27655047540 is a `hidden beast` number, since 2 + 7 + 6 + 550 + 47 + 54 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2840310 + ... + 2850029.

It is an arithmetic number, because the mean of its divisors is an integer number (1208248860).

Almost surely, 2^27655047540 is an apocalyptic number.

27655047540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27655047540 is an abundant number, since it is smaller than the sum of its proper divisors (59338870380).

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

27655047540 is a wasteful number, since it uses less digits than its factorization.

27655047540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690363 (or 5690349 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 27655047540 in words is "twenty-seven billion, six hundred fifty-five million, forty-seven thousand, five hundred forty".