68035418897 has 4 divisors (see below), whose sum is σ = 69319106100. Its totient is φ = 66751731696.

The previous prime is 68035418879. The next prime is 68035418917. The reversal of 68035418897 is 79881453086.

It is a happy number.

It is a Cunningham number, because it is equal to 260836²+1.

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 49046303296 + 18989115601 = 221464^2 + 137801^2 .

It is a cyclic number.

It is not a de Polignac number, because 68035418897 - 2¹⁶ = 68035353361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68035418827) 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, 641843522 + ... + 641843627.

It is an arithmetic number, because the mean of its divisors is an integer number (17329776525).

Almost surely, 2^68035418897 is an apocalyptic number.

It is an amenable number.

68035418897 is a deficient number, since it is larger than the sum of its proper divisors (1283687203).

68035418897 is a wasteful number, since it uses less digits than its factorization.

68035418897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283687202.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 68035418897 in words is "sixty-eight billion, thirty-five million, four hundred eighteen thousand, eight hundred ninety-seven".