5513399851969 has 9 divisors (see below), whose sum is σ = 5536940255139. Its totient is φ = 5489959139040.

The previous prime is 5513399851807. The next prime is 5513399852027. The reversal of 5513399851969 is 9691589933155.

The square root of 5513399851969 is 2348063.

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., 4146464746369 + 1366935105600 = 2036287^2 + 1169160^2 .

It is not a de Polignac number, because 5513399851969 - 2²⁷ = 5513265634241 is a prime.

It is a super-2 number, since 2×5513399851969² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5513399855969) 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, 565878312 + ... + 565888054.

Almost surely, 2^{5513399851969} is an apocalyptic number.

5513399851969 is the 2348063-rd square number.

5513399851969 is the 1174032-nd centered octagonal number.

It is an amenable number.

5513399851969 is a deficient number, since it is larger than the sum of its proper divisors (23540403170).

5513399851969 is an frugal number, since it uses more digits than its factorization.

5513399851969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19968 (or 9984 counting only the distinct ones).

The product of its digits is 354294000, while the sum is 73.

The spelling of 5513399851969 in words is "five trillion, five hundred thirteen billion, three hundred ninety-nine million, eight hundred fifty-one thousand, nine hundred sixty-nine".