68195635201 has 4 divisors (see below), whose sum is σ = 72207143172. Its totient is φ = 64184127232.

The previous prime is 68195635181. The next prime is 68195635217. The reversal of 68195635201 is 10253659186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45486652176 + 22708983025 = 213276^2 + 150695^2 .

It is not a de Polignac number, because 68195635201 - 2¹³ = 68195627009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68195635801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005753960 + ... + 2005753993.

It is an arithmetic number, because the mean of its divisors is an integer number (18051785793).

Almost surely, 2^68195635201 is an apocalyptic number.

It is an amenable number.

68195635201 is a deficient number, since it is larger than the sum of its proper divisors (4011507971).

68195635201 is a wasteful number, since it uses less digits than its factorization.

68195635201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011507970.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 68195635201 in words is "sixty-eight billion, one hundred ninety-five million, six hundred thirty-five thousand, two hundred one".