68720525301 has 4 divisors (see below), whose sum is σ = 91627367072. Its totient is φ = 45813683532.

The previous prime is 68720525287. The next prime is 68720525347. The reversal of 68720525301 is 10352502786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68720525301 - 2⁷ = 68720525173 is a prime.

It is a super-2 number, since 2×68720525301² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68720525301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68720523301) 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 3 ways as a sum of consecutive naturals, for example, 11453420881 + ... + 11453420886.

It is an arithmetic number, because the mean of its divisors is an integer number (22906841768).

Almost surely, 2^68720525301 is an apocalyptic number.

It is an amenable number.

68720525301 is a deficient number, since it is larger than the sum of its proper divisors (22906841771).

68720525301 is a wasteful number, since it uses less digits than its factorization.

68720525301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22906841770.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 68720525301 in words is "sixty-eight billion, seven hundred twenty million, five hundred twenty-five thousand, three hundred one".