13702341249 has 9 divisors (see below), whose sum is σ = 19792777953. Its totient is φ = 9134660052.

The previous prime is 13702341197. The next prime is 13702341253. The reversal of 13702341249 is 94214320731.

It is a happy number.

The square root of 13702341249 is 117057.

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

13702341249 is a `hidden beast` number, since 1 + 3 + 70 + 2 + 341 + 249 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 13702341249 - 2²¹ = 13700244097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13702341269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 331662 + ... + 370680.

Almost surely, 2^13702341249 is an apocalyptic number.

13702341249 is the 117057-th square number.

13702341249 is the 58529-th centered octagonal number.

It is an amenable number.

13702341249 is a deficient number, since it is larger than the sum of its proper divisors (6090436704).

13702341249 is an frugal number, since it uses more digits than its factorization.

13702341249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78044 (or 39022 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

Multiplying 13702341249 by its sum of digits (36), we get a square (493284284964 = 702342²).

The spelling of 13702341249 in words is "thirteen billion, seven hundred two million, three hundred forty-one thousand, two hundred forty-nine".