68276971455279 has 4 divisors (see below), whose sum is σ = 91035961940376. Its totient is φ = 45517980970184.

The previous prime is 68276971455263. The next prime is 68276971455289. The reversal of 68276971455279 is 97255417967286.

68276971455279 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.

It is a cyclic number.

It is not a de Polignac number, because 68276971455279 - 2⁴ = 68276971455263 is a prime.

It is a super-2 number, since 2×68276971455279² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68276971455289) 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, 11379495242544 + ... + 11379495242549.

It is an arithmetic number, because the mean of its divisors is an integer number (22758990485094).

Almost surely, 2^{68276971455279} is an apocalyptic number.

68276971455279 is a deficient number, since it is larger than the sum of its proper divisors (22758990485097).

68276971455279 is a wasteful number, since it uses less digits than its factorization.

68276971455279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22758990485096.

The product of its digits is 3200601600, while the sum is 78.

The spelling of 68276971455279 in words is "sixty-eight trillion, two hundred seventy-six billion, nine hundred seventy-one million, four hundred fifty-five thousand, two hundred seventy-nine".