267420334129 has 9 divisors (see below), whose sum is σ = 289580777643. Its totient is φ = 246843333672.

The previous prime is 267420334123. The next prime is 267420334141. The reversal of 267420334129 is 921433024762.

The square root of 267420334129 is 517127.

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

It can be written as a sum of positive squares in only one way, i.e., 39559221025 + 227861113104 = 198895^2 + 477348^2 .

It is not a de Polignac number, because 267420334129 - 2¹⁵ = 267420301361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (267420334123) 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, 6702762 + ... + 6742540.

Almost surely, 2^267420334129 is an apocalyptic number.

267420334129 is the 517127-th square number.

267420334129 is the 258564-th centered octagonal number.

It is an amenable number.

267420334129 is a deficient number, since it is larger than the sum of its proper divisors (22160443514).

267420334129 is an frugal number, since it uses more digits than its factorization.

267420334129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79584 (or 39792 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 267420334129 in words is "two hundred sixty-seven billion, four hundred twenty million, three hundred thirty-four thousand, one hundred twenty-nine".