5269517664849 has 9 divisors (see below), whose sum is σ = 7611535463259. Its totient is φ = 3513007185480.

The previous prime is 5269517664823. The next prime is 5269517664863. The reversal of 5269517664849 is 9484667159625.

The square root of 5269517664849 is 2295543.

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

5269517664849 is a `hidden beast` number, since 5 + 2 + 6 + 9 + 517 + 6 + 64 + 8 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5043873664449 + 225644000400 = 2245857^2 + 475020^2 .

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

It is not a de Polignac number, because 5269517664849 - 2²¹ = 5269515567697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5269517665849) 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, 6504039 + ... + 7269219.

Almost surely, 2^{5269517664849} is an apocalyptic number.

5269517664849 is the 2295543-rd square number.

5269517664849 is the 1147772-nd centered octagonal number.

It is an amenable number.

5269517664849 is a deficient number, since it is larger than the sum of its proper divisors (2342017798410).

5269517664849 is an frugal number, since it uses more digits than its factorization.

5269517664849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530368 (or 765184 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 72.

The spelling of 5269517664849 in words is "five trillion, two hundred sixty-nine billion, five hundred seventeen million, six hundred sixty-four thousand, eight hundred forty-nine".