13069042002769 has 9 divisors (see below), whose sum is σ = 13142303578929. Its totient is φ = 12996186630480.

The previous prime is 13069042002763. The next prime is 13069042002817. The reversal of 13069042002769 is 96720024096031.

The square root of 13069042002769 is 3615113.

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 6766371500625 + 6302670502144 = 2601225^2 + 2510512^2 .

It is not a de Polignac number, because 13069042002769 - 2¹³ = 13069041994577 is a prime.

It is a super-2 number, since 2×13069042002769² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13069042002763) 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, 654325467 + ... + 654345439.

Almost surely, 2^{13069042002769} is an apocalyptic number.

13069042002769 is the 3615113-rd square number.

13069042002769 is the 1807557-th centered octagonal number.

It is an amenable number.

13069042002769 is a deficient number, since it is larger than the sum of its proper divisors (73261576160).

13069042002769 is an frugal number, since it uses more digits than its factorization.

13069042002769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40308 (or 20154 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

Multiplying 13069042002769 by its sum of digits (49), we get a square (640383058135681 = 25305791²).

The spelling of 13069042002769 in words is "thirteen trillion, sixty-nine billion, forty-two million, two thousand, seven hundred sixty-nine".