196249472549 has 16 divisors (see below), whose sum is σ = 220624747392. Its totient is φ = 173206237248.

The previous prime is 196249472543. The next prime is 196249472579. The reversal of 196249472549 is 945274942691.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196249472549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196249472491 and 196249472500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196249472543) 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, 604607 + ... + 870659.

It is an arithmetic number, because the mean of its divisors is an integer number (13789046712).

Almost surely, 2^196249472549 is an apocalyptic number.

It is an amenable number.

196249472549 is a deficient number, since it is larger than the sum of its proper divisors (24375274843).

196249472549 is a wasteful number, since it uses less digits than its factorization.

196249472549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268556.

The product of its digits is 39191040, while the sum is 62.

The spelling of 196249472549 in words is "one hundred ninety-six billion, two hundred forty-nine million, four hundred seventy-two thousand, five hundred forty-nine".