27405305042323 has 32 divisors (see below), whose sum is σ = 30728944576512. Its totient is φ = 24278720544000.

The previous prime is 27405305042317. The next prime is 27405305042351. The reversal of 27405305042323 is 32324050350472.

It is a de Polignac number, because none of the positive numbers 2^k-27405305042323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27405305042363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6636786 + ... + 9942712.

It is an arithmetic number, because the mean of its divisors is an integer number (960279518016).

Almost surely, 2^{27405305042323} is an apocalyptic number.

27405305042323 is a deficient number, since it is larger than the sum of its proper divisors (3323639534189).

27405305042323 is a wasteful number, since it uses less digits than its factorization.

27405305042323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306235.

The product of its (nonzero) digits is 604800, while the sum is 40.

Adding to 27405305042323 its reverse (32324050350472), we get a palindrome (59729355392795).

The spelling of 27405305042323 in words is "twenty-seven trillion, four hundred five billion, three hundred five million, forty-two thousand, three hundred twenty-three".