196040426840 has 32 divisors (see below), whose sum is σ = 447674413680. Its totient is φ = 77245779072.

The previous prime is 196040426809. The next prime is 196040426863. The reversal of 196040426840 is 48624040691.

196040426840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 196040426791 and 196040426800.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 36572027 + ... + 36577386.

Almost surely, 2^196040426840 is an apocalyptic number.

196040426840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196040426840 is an abundant number, since it is smaller than the sum of its proper divisors (251633986840).

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

196040426840 is a wasteful number, since it uses less digits than its factorization.

196040426840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73149491 (or 73149487 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 196040426840 in words is "one hundred ninety-six billion, forty million, four hundred twenty-six thousand, eight hundred forty".