196955880949 has 4 divisors (see below), whose sum is σ = 198210377164. Its totient is φ = 195701384736.

The previous prime is 196955880931. The next prime is 196955880977. The reversal of 196955880949 is 949088559691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61314673924 + 135641207025 = 247618^2 + 368295^2 .

It is a cyclic number.

It is not a de Polignac number, because 196955880949 - 2⁹ = 196955880437 is a prime.

It is a super-2 number, since 2×196955880949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196955886949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627247872 + ... + 627248185.

It is an arithmetic number, because the mean of its divisors is an integer number (49552594291).

Almost surely, 2^196955880949 is an apocalyptic number.

It is an amenable number.

196955880949 is a deficient number, since it is larger than the sum of its proper divisors (1254496215).

196955880949 is a wasteful number, since it uses less digits than its factorization.

196955880949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254496214.

The product of its (nonzero) digits is 251942400, while the sum is 73.

The spelling of 196955880949 in words is "one hundred ninety-six billion, nine hundred fifty-five million, eight hundred eighty thousand, nine hundred forty-nine".