13297087969 has 15 divisors (see below), whose sum is σ = 14642070115. Its totient is φ = 12075577360.

The previous prime is 13297087963. The next prime is 13297088011. The reversal of 13297087969 is 96978079231.

The square root of 13297087969 is 115313.

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., 5537592225 + 7759495744 = 74415^2 + 88088^2 .

It is not a de Polignac number, because 13297087969 - 2³ = 13297087961 is a prime.

It is a super-2 number, since 2×13297087969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13297087961) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13952397 + ... + 13953349.

Almost surely, 2^13297087969 is an apocalyptic number.

13297087969 is the 115313-rd square number.

13297087969 is the 57657-th centered octagonal number.

It is an amenable number.

13297087969 is a deficient number, since it is larger than the sum of its proper divisors (1344982146).

13297087969 is an frugal number, since it uses more digits than its factorization.

13297087969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 13297087969 in words is "thirteen billion, two hundred ninety-seven million, eighty-seven thousand, nine hundred sixty-nine".