68652526321 has 4 divisors (see below), whose sum is σ = 72265817200. Its totient is φ = 65039235444.

The previous prime is 68652526273. The next prime is 68652526331. The reversal of 68652526321 is 12362525686.

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 a cyclic number.

It is not a de Polignac number, because 68652526321 - 2³¹ = 66505042673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68652526331) 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, 1806645411 + ... + 1806645448.

It is an arithmetic number, because the mean of its divisors is an integer number (18066454300).

Almost surely, 2^68652526321 is an apocalyptic number.

It is an amenable number.

68652526321 is a deficient number, since it is larger than the sum of its proper divisors (3613290879).

68652526321 is a wasteful number, since it uses less digits than its factorization.

68652526321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613290878.

The product of its digits is 1036800, while the sum is 46.

The spelling of 68652526321 in words is "sixty-eight billion, six hundred fifty-two million, five hundred twenty-six thousand, three hundred twenty-one".