68302254409 has 3 divisors (see below), whose sum is σ = 68302515757. Its totient is φ = 68301993062.

The previous prime is 68302254353. The next prime is 68302254431. The reversal of 68302254409 is 90445220386.

The square root of 68302254409 is 261347.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90445220386 = 2 ⋅45222610193.

It is not a de Polignac number, because 68302254409 - 2³¹ = 66154770761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68302254809) 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 2 ways as a sum of consecutive naturals, for example, 130674 + ... + 392020.

Almost surely, 2^68302254409 is an apocalyptic number.

68302254409 is the 261347-th square number.

68302254409 is the 130674-th centered octagonal number.

It is an amenable number.

68302254409 is a deficient number, since it is larger than the sum of its proper divisors (261348).

68302254409 is an frugal number, since it uses more digits than its factorization.

68302254409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522694 (or 261347 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 68302254409 in words is "sixty-eight billion, three hundred two million, two hundred fifty-four thousand, four hundred nine".