27348229129 has 9 divisors (see below), whose sum is σ = 29616091029. Its totient is φ = 25242534720.

The previous prime is 27348229127. The next prime is 27348229133. The reversal of 27348229129 is 92192284372.

The square root of 27348229129 is 165373.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 40005625 + 27308223504 = 6325^2 + 165252^2 .

It is not a de Polignac number, because 27348229129 - 2¹ = 27348229127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27348229123) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2143489 + ... + 2156209.

It is an arithmetic number, because the mean of its divisors is an integer number (3290676781).

Almost surely, 2^27348229129 is an apocalyptic number.

27348229129 is the 165373-rd square number.

27348229129 is the 82687-th centered octagonal number.

It is an amenable number.

27348229129 is a deficient number, since it is larger than the sum of its proper divisors (2267861900).

27348229129 is an frugal number, since it uses more digits than its factorization.

27348229129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25468 (or 12734 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

Multiplying 27348229129 by its sum of digits (49), we get a square (1340063227321 = 1157611²).

The spelling of 27348229129 in words is "twenty-seven billion, three hundred forty-eight million, two hundred twenty-nine thousand, one hundred twenty-nine".