27143427375 has 64 divisors (see below), whose sum is σ = 50220618240. Its totient is φ = 14466276000.

The previous prime is 27143427373. The next prime is 27143427403. The reversal of 27143427375 is 57372434172.

27143427375 is a `hidden beast` number, since 271 + 4 + 3 + 4 + 2 + 7 + 375 = 666.

It is not a de Polignac number, because 27143427375 - 2¹ = 27143427373 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27143427375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27143427373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9134640 + ... + 9137610.

It is an arithmetic number, because the mean of its divisors is an integer number (784697160).

Almost surely, 2^27143427375 is an apocalyptic number.

27143427375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27143427375 is a deficient number, since it is larger than the sum of its proper divisors (23077190865).

27143427375 is a wasteful number, since it uses less digits than its factorization.

27143427375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5702 (or 5686 counting only the distinct ones).

The product of its digits is 987840, while the sum is 45.

The spelling of 27143427375 in words is "twenty-seven billion, one hundred forty-three million, four hundred twenty-seven thousand, three hundred seventy-five".