196581281019 has 8 divisors (see below), whose sum is σ = 264513039120. Its totient is φ = 129851855136.

The previous prime is 196581281003. The next prime is 196581281023. The reversal of 196581281019 is 910182185691.

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

It is not a de Polignac number, because 196581281019 - 2⁴ = 196581281003 is a prime.

It is a super-2 number, since 2×196581281019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196581281069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300582672 + ... + 300583325.

It is an arithmetic number, because the mean of its divisors is an integer number (33064129890).

Almost surely, 2^196581281019 is an apocalyptic number.

196581281019 is a deficient number, since it is larger than the sum of its proper divisors (67931758101).

196581281019 is a wasteful number, since it uses less digits than its factorization.

196581281019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601166109.

The product of its (nonzero) digits is 311040, while the sum is 51.

The spelling of 196581281019 in words is "one hundred ninety-six billion, five hundred eighty-one million, two hundred eighty-one thousand, nineteen".