68011344770149 has 4 divisors (see below), whose sum is σ = 74194194294720. Its totient is φ = 61828495245580.

The previous prime is 68011344770147. The next prime is 68011344770231. The reversal of 68011344770149 is 94107744311086.

68011344770149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 68011344770149 - 2¹ = 68011344770147 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 68011344770149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68011344770147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3091424762269 + ... + 3091424762290.

It is an arithmetic number, because the mean of its divisors is an integer number (18548548573680).

Almost surely, 2^{68011344770149} is an apocalyptic number.

It is an amenable number.

68011344770149 is a deficient number, since it is larger than the sum of its proper divisors (6182849524571).

68011344770149 is a wasteful number, since it uses less digits than its factorization.

68011344770149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182849524570.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 68011344770149 in words is "sixty-eight trillion, eleven billion, three hundred forty-four million, seven hundred seventy thousand, one hundred forty-nine".