78322827822 has 16 divisors (see below), whose sum is σ = 165860106192. Its totient is φ = 24571867520.

The previous prime is 78322827811. The next prime is 78322827829. The reversal of 78322827822 is 22872822387.

It is a happy number.

It is a super-2 number, since 2×78322827822² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78322827829) 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 7 ways as a sum of consecutive naturals, for example, 383935329 + ... + 383935532.

It is an arithmetic number, because the mean of its divisors is an integer number (10366256637).

Almost surely, 2^78322827822 is an apocalyptic number.

78322827822 is an abundant number, since it is smaller than the sum of its proper divisors (87537278370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78322827822 is a wasteful number, since it uses less digits than its factorization.

78322827822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767870883.

The product of its digits is 2408448, while the sum is 51.

The spelling of 78322827822 in words is "seventy-eight billion, three hundred twenty-two million, eight hundred twenty-seven thousand, eight hundred twenty-two".