69354802609 has 9 divisors (see below), whose sum is σ = 69636410977. Its totient is φ = 69074331664.

The previous prime is 69354802603. The next prime is 69354802619. The reversal of 69354802609 is 90620845396.

The square root of 69354802609 is 263353.

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 12076911025 + 57277891584 = 109895^2 + 239328^2 .

It is not a de Polignac number, because 69354802609 - 2²⁹ = 68817931697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69354802603) 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, 102443979 + ... + 102444655.

Almost surely, 2^69354802609 is an apocalyptic number.

69354802609 is the 263353-rd square number.

69354802609 is the 131677-th centered octagonal number.

It is an amenable number.

69354802609 is a deficient number, since it is larger than the sum of its proper divisors (281608368).

69354802609 is an frugal number, since it uses more digits than its factorization.

69354802609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 69354802609 in words is "sixty-nine billion, three hundred fifty-four million, eight hundred two thousand, six hundred nine".