167428636818 has 16 divisors (see below), whose sum is σ = 334868113440. Its totient is φ = 55807738976.

The previous prime is 167428636783. The next prime is 167428636819. The reversal of 167428636818 is 818636824761.

It is not an unprimeable number, because it can be changed into a prime (167428636819) 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, 243483 + ... + 627806.

It is an arithmetic number, because the mean of its divisors is an integer number (20929257090).

Almost surely, 2^167428636818 is an apocalyptic number.

167428636818 is an abundant number, since it is smaller than the sum of its proper divisors (167439476622).

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

167428636818 is a wasteful number, since it uses less digits than its factorization.

167428636818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903321.

The product of its digits is 18579456, while the sum is 60.

The spelling of 167428636818 in words is "one hundred sixty-seven billion, four hundred twenty-eight million, six hundred thirty-six thousand, eight hundred eighteen".