13202707403809 has 27 divisors (see below), whose sum is σ = 16881741594291. Its totient is φ = 10287605937840.

The previous prime is 13202707403797. The next prime is 13202707403819. The reversal of 13202707403809 is 90830470720231.

The square root of 13202707403809 is 3633553.

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., 13091031131409 + 111676272400 = 3618153^2 + 334180^2 .

It is not a de Polignac number, because 13202707403809 - 2⁷ = 13202707403681 is a prime.

It is a super-2 number, since 2×13202707403809² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13202707403819) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 279759987 + ... + 279807175.

Almost surely, 2^{13202707403809} is an apocalyptic number.

13202707403809 is the 3633553-rd square number.

13202707403809 is the 1816777-th centered octagonal number.

It is an amenable number.

13202707403809 is a deficient number, since it is larger than the sum of its proper divisors (3679034190482).

13202707403809 is an frugal number, since it uses more digits than its factorization.

13202707403809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94414 (or 47207 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 13202707403809 in words is "thirteen trillion, two hundred two billion, seven hundred seven million, four hundred three thousand, eight hundred nine".