122678113378 has 8 divisors (see below), whose sum is σ = 184085918172. Its totient is φ = 61316140656.

The previous prime is 122678113367. The next prime is 122678113381. The reversal of 122678113378 is 873311876221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81731376769 + 40946736609 = 285887^2 + 202353^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11451325 + ... + 11462032.

Almost surely, 2^122678113378 is an apocalyptic number.

122678113378 is a deficient number, since it is larger than the sum of its proper divisors (61407804794).

122678113378 is a wasteful number, since it uses less digits than its factorization.

122678113378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22916036.

The product of its digits is 677376, while the sum is 49.

Adding to 122678113378 its reverse (873311876221), we get a palindrome (995989989599).

The spelling of 122678113378 in words is "one hundred twenty-two billion, six hundred seventy-eight million, one hundred thirteen thousand, three hundred seventy-eight".