27301380129 has 64 divisors (see below), whose sum is σ = 44734809600. Its totient is φ = 16378177536.

The previous prime is 27301380109. The next prime is 27301380179. The reversal of 27301380129 is 92108310372.

27301380129 is a `hidden beast` number, since 273 + 0 + 1 + 380 + 1 + 2 + 9 = 666.

It is not a de Polignac number, because 27301380129 - 2²³ = 27292991521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27301380093 and 27301380102.

It is not an unprimeable number, because it can be changed into a prime (27301380109) 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, 1361077 + ... + 1380989.

It is an arithmetic number, because the mean of its divisors is an integer number (698981400).

Almost surely, 2^27301380129 is an apocalyptic number.

27301380129 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

27301380129 is a deficient number, since it is larger than the sum of its proper divisors (17433429471).

27301380129 is a wasteful number, since it uses less digits than its factorization.

27301380129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20071 (or 20065 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 27301380129 in words is "twenty-seven billion, three hundred one million, three hundred eighty thousand, one hundred twenty-nine".