69869820241 has 9 divisors (see below), whose sum is σ = 75661573809. Its totient is φ = 64492046736.

The previous prime is 69869820211. The next prime is 69869820253. The reversal of 69869820241 is 14202896896.

The square root of 69869820241 is 264329.

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 3099260241 + 66770560000 = 55671^2 + 258400^2 .

It is not a de Polignac number, because 69869820241 - 2²⁷ = 69735602513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69869820211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3426111 + ... + 3446443.

Almost surely, 2^69869820241 is an apocalyptic number.

69869820241 is the 264329-th square number.

69869820241 is the 132165-th centered octagonal number.

It is an amenable number.

69869820241 is a deficient number, since it is larger than the sum of its proper divisors (5791753568).

69869820241 is an frugal number, since it uses more digits than its factorization.

69869820241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40692 (or 20346 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 69869820241 in words is "sixty-nine billion, eight hundred sixty-nine million, eight hundred twenty thousand, two hundred forty-one".