27540172799 has 8 divisors (see below), whose sum is σ = 28493370000. Its totient is φ = 26587211392.

The previous prime is 27540172789. The next prime is 27540172817. The reversal of 27540172799 is 99727104572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27540172799 is a prime.

It is a super-2 number, since 2×27540172799² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27540172799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27540172729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197687 + ... + 306855.

It is an arithmetic number, because the mean of its divisors is an integer number (3561671250).

Almost surely, 2^27540172799 is an apocalyptic number.

27540172799 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

27540172799 is a deficient number, since it is larger than the sum of its proper divisors (953197201).

27540172799 is a wasteful number, since it uses less digits than its factorization.

27540172799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117897.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 27540172799 in words is "twenty-seven billion, five hundred forty million, one hundred seventy-two thousand, seven hundred ninety-nine".