196485843138 has 32 divisors (see below), whose sum is σ = 432204546816. Its totient is φ = 59170858368.

The previous prime is 196485843101. The next prime is 196485843143. The reversal of 196485843138 is 831348584691.

It is a happy number.

196485843138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26794731 + ... + 26802062.

It is an arithmetic number, because the mean of its divisors is an integer number (13506392088).

Almost surely, 2^196485843138 is an apocalyptic number.

196485843138 is an abundant number, since it is smaller than the sum of its proper divisors (235718703678).

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

196485843138 is a wasteful number, since it uses less digits than its factorization.

196485843138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53596858.

The product of its digits is 19906560, while the sum is 60.

The spelling of 196485843138 in words is "one hundred ninety-six billion, four hundred eighty-five million, eight hundred forty-three thousand, one hundred thirty-eight".