27384477121 has 8 divisors (see below), whose sum is σ = 27443191464. Its totient is φ = 27325816320.

The previous prime is 27384477089. The next prime is 27384477163. The reversal of 27384477121 is 12177448372.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10974867121 + 16409610000 = 104761^2 + 128100^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27384477121 - 2⁵ = 27384477089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27384477181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109511 + ... + 1133923.

It is an arithmetic number, because the mean of its divisors is an integer number (3430398933).

Almost surely, 2^27384477121 is an apocalyptic number.

It is an amenable number.

27384477121 is a deficient number, since it is larger than the sum of its proper divisors (58714343).

27384477121 is a wasteful number, since it uses less digits than its factorization.

27384477121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26771.

The product of its digits is 526848, while the sum is 46.

The spelling of 27384477121 in words is "twenty-seven billion, three hundred eighty-four million, four hundred seventy-seven thousand, one hundred twenty-one".