167986468378 has 8 divisors (see below), whose sum is σ = 252237617172. Its totient is φ = 83907262656.

The previous prime is 167986468373. The next prime is 167986468399. The reversal of 167986468378 is 873864689761.

It can be written as a sum of positive squares in 2 ways, for example, as 165386182329 + 2600286049 = 406677^2 + 50993^2 .

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

It is a super-3 number, since 3×167986468378³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 167986468378.

It is not an unprimeable number, because it can be changed into a prime (167986468373) 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 3 ways as a sum of consecutive naturals, for example, 42983325 + ... + 42987232.

Almost surely, 2^167986468378 is an apocalyptic number.

167986468378 is a deficient number, since it is larger than the sum of its proper divisors (84251148794).

167986468378 is an equidigital number, since it uses as much as digits as its factorization.

167986468378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85971536.

The product of its digits is 585252864, while the sum is 73.

The spelling of 167986468378 in words is "one hundred sixty-seven billion, nine hundred eighty-six million, four hundred sixty-eight thousand, three hundred seventy-eight".