78126822843 has 8 divisors (see below), whose sum is σ = 104170871808. Its totient is φ = 52083661224.

The previous prime is 78126822793. The next prime is 78126822847. The reversal of 78126822843 is 34822862187.

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

It is not a de Polignac number, because 78126822843 - 2¹⁷ = 78126691771 is a prime.

It is a super-3 number, since 3×78126822843³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (78126822847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21846 + ... + 395892.

It is an arithmetic number, because the mean of its divisors is an integer number (13021358976).

Almost surely, 2^78126822843 is an apocalyptic number.

78126822843 is a deficient number, since it is larger than the sum of its proper divisors (26044048965).

78126822843 is a wasteful number, since it uses less digits than its factorization.

78126822843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443673.

The product of its digits is 2064384, while the sum is 51.

The spelling of 78126822843 in words is "seventy-eight billion, one hundred twenty-six million, eight hundred twenty-two thousand, eight hundred forty-three".