27429513617 has 16 divisors (see below), whose sum is σ = 31690180800. Its totient is φ = 23463997440.

The previous prime is 27429513611. The next prime is 27429513697. The reversal of 27429513617 is 71631592472.

It is a cyclic number.

It is not a de Polignac number, because 27429513617 - 2²⁰ = 27428465041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27429513611) 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 15 ways as a sum of consecutive naturals, for example, 1028234 + ... + 1054572.

It is an arithmetic number, because the mean of its divisors is an integer number (1980636300).

Almost surely, 2^27429513617 is an apocalyptic number.

It is an amenable number.

27429513617 is a deficient number, since it is larger than the sum of its proper divisors (4260667183).

27429513617 is a wasteful number, since it uses less digits than its factorization.

27429513617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31936.

The product of its digits is 635040, while the sum is 47.

The spelling of 27429513617 in words is "twenty-seven billion, four hundred twenty-nine million, five hundred thirteen thousand, six hundred seventeen".