27115642752 has 64 divisors (see below), whose sum is σ = 78573749760. Its totient is φ = 8216860160.

The previous prime is 27115642751. The next prime is 27115642769. The reversal of 27115642752 is 25724651172.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27115642751) by changing a digit.

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, 3205488 + ... + 3213935.

It is an arithmetic number, because the mean of its divisors is an integer number (1227714840).

Almost surely, 2^27115642752 is an apocalyptic number.

27115642752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27115642752 is an abundant number, since it is smaller than the sum of its proper divisors (51458107008).

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

27115642752 is a wasteful number, since it uses less digits than its factorization.

27115642752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419451 (or 6419439 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The spelling of 27115642752 in words is "twenty-seven billion, one hundred fifteen million, six hundred forty-two thousand, seven hundred fifty-two".