78968267922853 has 4 divisors (see below), whose sum is σ = 78970665219628. Its totient is φ = 78965870626080.

The previous prime is 78968267922769. The next prime is 78968267922857. The reversal of 78968267922853 is 35822976286987.

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 27717087148804 + 51251180774049 = 5264702^2 + 7158993^2 .

It is a cyclic number.

It is not a de Polignac number, because 78968267922853 - 2¹³ = 78968267914661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78968267922857) 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, 1198598976 + ... + 1198664857.

It is an arithmetic number, because the mean of its divisors is an integer number (19742666304907).

Almost surely, 2^{78968267922853} is an apocalyptic number.

It is an amenable number.

78968267922853 is a deficient number, since it is larger than the sum of its proper divisors (2397296775).

78968267922853 is a wasteful number, since it uses less digits than its factorization.

78968267922853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397296774.

The product of its digits is 8778792960, while the sum is 82.

It can be divided in two parts, 78968267 and 922853, that added together give a triangular number (79891120 = T₁₂₆₄₀).

The spelling of 78968267922853 in words is "seventy-eight trillion, nine hundred sixty-eight billion, two hundred sixty-seven million, nine hundred twenty-two thousand, eight hundred fifty-three".