27147432723 has 8 divisors (see below), whose sum is σ = 36205986768. Its totient is φ = 18093583584.

The previous prime is 27147432679. The next prime is 27147432743. The reversal of 27147432723 is 32723474172.

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

It is not a de Polignac number, because 27147432723 - 2²⁰ = 27146384147 is a prime.

It is a super-3 number, since 3×27147432723³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (27147432743) 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, 1162740 + ... + 1185857.

It is an arithmetic number, because the mean of its divisors is an integer number (4525748346).

Almost surely, 2^27147432723 is an apocalyptic number.

27147432723 is a deficient number, since it is larger than the sum of its proper divisors (9058554045).

27147432723 is a wasteful number, since it uses less digits than its factorization.

27147432723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352453.

The product of its digits is 395136, while the sum is 42.

The spelling of 27147432723 in words is "twenty-seven billion, one hundred forty-seven million, four hundred thirty-two thousand, seven hundred twenty-three".