68068587233 has 8 divisors (see below), whose sum is σ = 68331753000. Its totient is φ = 67805918208.

The previous prime is 68068587229. The next prime is 68068587241. The reversal of 68068587233 is 33278586086.

It can be written as a sum of positive squares in 4 ways, for example, as 14386849 + 68054200384 = 3793^2 + 260872^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68068587233 - 2² = 68068587229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68068587253) 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, 151583 + ... + 398891.

It is an arithmetic number, because the mean of its divisors is an integer number (8541469125).

Almost surely, 2^68068587233 is an apocalyptic number.

It is an amenable number.

68068587233 is a deficient number, since it is larger than the sum of its proper divisors (263165767).

68068587233 is a wasteful number, since it uses less digits than its factorization.

68068587233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248371.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 68068587233 in words is "sixty-eight billion, sixty-eight million, five hundred eighty-seven thousand, two hundred thirty-three".