68352930225 has 18 divisors (see below), whose sum is σ = 122427693206. Its totient is φ = 36454896000.

The previous prime is 68352930209. The next prime is 68352930253. The reversal of 68352930225 is 52203925386.

It can be written as a sum of positive squares in 3 ways, for example, as 126967824 + 68225962401 = 11268^2 + 261201^2 .

It is not a de Polignac number, because 68352930225 - 2⁴ = 68352930209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 151895176 + ... + 151895625.

Almost surely, 2^68352930225 is an apocalyptic number.

It is an amenable number.

68352930225 is a deficient number, since it is larger than the sum of its proper divisors (54074762981).

68352930225 is a wasteful number, since it uses less digits than its factorization.

68352930225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303790817 (or 303790809 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 68352930225 in words is "sixty-eight billion, three hundred fifty-two million, nine hundred thirty thousand, two hundred twenty-five".