196878285156 has 96 divisors (see below), whose sum is σ = 539265807360. Its totient is φ = 54743635584.

The previous prime is 196878285119. The next prime is 196878285157. The reversal of 196878285156 is 651582878691.

It is a super-2 number, since 2×196878285156² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196878285157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256390 + ... + 677858.

It is an arithmetic number, because the mean of its divisors is an integer number (5617352160).

Almost surely, 2^196878285156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196878285156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269632903680).

196878285156 is an abundant number, since it is smaller than the sum of its proper divisors (342387522204).

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

196878285156 is a wasteful number, since it uses less digits than its factorization.

196878285156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421633 (or 421631 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 66.

The spelling of 196878285156 in words is "one hundred ninety-six billion, eight hundred seventy-eight million, two hundred eighty-five thousand, one hundred fifty-six".