68658789097 has 4 divisors (see below), whose sum is σ = 69152737360. Its totient is φ = 68164840836.

The previous prime is 68658789077. The next prime is 68658789109. The reversal of 68658789097 is 79098785686.

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 a de Polignac number, because none of the positive numbers 2^k-68658789097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68658789047) 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, 246973923 + ... + 246974200.

It is an arithmetic number, because the mean of its divisors is an integer number (17288184340).

Almost surely, 2^68658789097 is an apocalyptic number.

It is an amenable number.

68658789097 is a deficient number, since it is larger than the sum of its proper divisors (493948263).

68658789097 is a wasteful number, since it uses less digits than its factorization.

68658789097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493948262.

The product of its (nonzero) digits is 365783040, while the sum is 73.

The spelling of 68658789097 in words is "sixty-eight billion, six hundred fifty-eight million, seven hundred eighty-nine thousand, ninety-seven".