196431240128449 has 8 divisors (see below), whose sum is σ = 198918948460160. Its totient is φ = 193943562720336.

The previous prime is 196431240128429. The next prime is 196431240128531. The reversal of 196431240128449 is 944821042134691.

196431240128449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196431240128449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196431240128393 and 196431240128402.

It is not an unprimeable number, because it can be changed into a prime (196431240128429) 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, 5189719 + ... + 20488915.

It is an arithmetic number, because the mean of its divisors is an integer number (24864868557520).

Almost surely, 2^{196431240128449} is an apocalyptic number.

It is an amenable number.

196431240128449 is a deficient number, since it is larger than the sum of its proper divisors (2487708331711).

196431240128449 is a wasteful number, since it uses less digits than its factorization.

196431240128449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15461799.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 196431240128449 in words is "one hundred ninety-six trillion, four hundred thirty-one billion, two hundred forty million, one hundred twenty-eight thousand, four hundred forty-nine".