27840551329 has 4 divisors (see below), whose sum is σ = 27846475776. Its totient is φ = 27834626884.

The previous prime is 27840551327. The next prime is 27840551407. The reversal of 27840551329 is 92315504872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27840551329 - 2¹ = 27840551327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27840551327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955169 + ... + 2964574.

It is an arithmetic number, because the mean of its divisors is an integer number (6961618944).

Almost surely, 2^27840551329 is an apocalyptic number.

It is an amenable number.

27840551329 is a deficient number, since it is larger than the sum of its proper divisors (5924447).

27840551329 is an equidigital number, since it uses as much as digits as its factorization.

27840551329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924446.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 27840551329 in words is "twenty-seven billion, eight hundred forty million, five hundred fifty-one thousand, three hundred twenty-nine".