196835402905 has 8 divisors (see below), whose sum is σ = 236275113672. Its totient is φ = 157419902208.

The previous prime is 196835402891. The next prime is 196835402927. The reversal of 196835402905 is 509204538691.

It can be written as a sum of positive squares in 4 ways, for example, as 81731948544 + 115103454361 = 285888^2 + 339269^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 196835402905 - 2⁵ = 196835402873 is a prime.

It is a super-4 number, since 4×196835402905⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6034624 + ... + 6067153.

It is an arithmetic number, because the mean of its divisors is an integer number (29534389209).

Almost surely, 2^196835402905 is an apocalyptic number.

It is an amenable number.

196835402905 is a deficient number, since it is larger than the sum of its proper divisors (39439710767).

196835402905 is a wasteful number, since it uses less digits than its factorization.

196835402905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105035.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 196835402905 in words is "one hundred ninety-six billion, eight hundred thirty-five million, four hundred two thousand, nine hundred five".