196400509071 has 16 divisors (see below), whose sum is σ = 282029445600. Its totient is φ = 120853941120.

The previous prime is 196400509069. The next prime is 196400509127. The reversal of 196400509071 is 170905004691.

It is not a de Polignac number, because 196400509071 - 2¹ = 196400509069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196400504071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469605 + ... + 783153.

It is an arithmetic number, because the mean of its divisors is an integer number (17626840350).

Almost surely, 2^196400509071 is an apocalyptic number.

196400509071 is a deficient number, since it is larger than the sum of its proper divisors (85628936529).

196400509071 is a wasteful number, since it uses less digits than its factorization.

196400509071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329626.

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 196400509071 in words is "one hundred ninety-six billion, four hundred million, five hundred nine thousand, seventy-one".