196215486278 has 8 divisors (see below), whose sum is σ = 336369405072. Its totient is φ = 84092351256.

The previous prime is 196215486241. The next prime is 196215486281. The reversal of 196215486278 is 872684512691.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7007695925 + ... + 7007695952.

It is an arithmetic number, because the mean of its divisors is an integer number (42046175634).

Almost surely, 2^196215486278 is an apocalyptic number.

196215486278 is a deficient number, since it is larger than the sum of its proper divisors (140153918794).

196215486278 is a wasteful number, since it uses less digits than its factorization.

196215486278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14015391886.

The product of its digits is 11612160, while the sum is 59.

The spelling of 196215486278 in words is "one hundred ninety-six billion, two hundred fifteen million, four hundred eighty-six thousand, two hundred seventy-eight".