68007040133 has 4 divisors (see below), whose sum is σ = 68277984768. Its totient is φ = 67736095500.

The previous prime is 68007040103. The next prime is 68007040151. The reversal of 68007040133 is 33104070086.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33104070086 = 2 ⋅16552035043.

It is a cyclic number.

It is not a de Polignac number, because 68007040133 - 2¹⁰ = 68007039109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68007040133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68007040103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135471941 + ... + 135472442.

It is an arithmetic number, because the mean of its divisors is an integer number (17069496192).

Almost surely, 2^68007040133 is an apocalyptic number.

It is an amenable number.

68007040133 is a deficient number, since it is larger than the sum of its proper divisors (270944635).

68007040133 is a wasteful number, since it uses less digits than its factorization.

68007040133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270944634.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 68007040133 in words is "sixty-eight billion, seven million, forty thousand, one hundred thirty-three".