68608572835821 has 8 divisors (see below), whose sum is σ = 91556216757984. Its totient is φ = 45699988735440.

The previous prime is 68608572835799. The next prime is 68608572835823. The reversal of 68608572835821 is 12853827580686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68608572835821 - 2⁶ = 68608572835757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68608572835823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9764951346 + ... + 9764958371.

It is an arithmetic number, because the mean of its divisors is an integer number (11444527094748).

Almost surely, 2^{68608572835821} is an apocalyptic number.

It is an amenable number.

68608572835821 is a deficient number, since it is larger than the sum of its proper divisors (22947643922163).

68608572835821 is a wasteful number, since it uses less digits than its factorization.

68608572835821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19529910891.

The product of its (nonzero) digits is 309657600, while the sum is 69.

The spelling of 68608572835821 in words is "sixty-eight trillion, six hundred eight billion, five hundred seventy-two million, eight hundred thirty-five thousand, eight hundred twenty-one".