608248689409 has 9 divisors (see below), whose sum is σ = 611806129347. Its totient is φ = 604711829304.

The previous prime is 608248689397. The next prime is 608248689413. The reversal of 608248689409 is 904986842806.

The square root of 608248689409 is 779903.

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., 607690407025 + 558282384 = 779545^2 + 23628^2 .

It is a de Polignac number, because none of the positive numbers 2^k-608248689409 is a prime.

It is a super-2 number, since 2×608248689409² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608248689709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 139600459 + ... + 139604815.

Almost surely, 2^608248689409 is an apocalyptic number.

608248689409 is the 779903-rd square number.

608248689409 is the 389952-nd centered octagonal number.

It is an amenable number.

608248689409 is a deficient number, since it is larger than the sum of its proper divisors (3557439938).

608248689409 is an frugal number, since it uses more digits than its factorization.

608248689409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 64.

Multiplying 608248689409 by its sum of digits (64), we get a square (38927916122176 = 6239224²).

The spelling of 608248689409 in words is "six hundred eight billion, two hundred forty-eight million, six hundred eighty-nine thousand, four hundred nine".