196906477841 has 2 divisors, whose sum is σ = 196906477842. Its totient is φ = 196906477840.

The previous prime is 196906477741. The next prime is 196906477871. The reversal of 196906477841 is 148774609691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150994416400 + 45912061441 = 388580^2 + 214271^2 .

It is a cyclic number.

It is not a de Polignac number, because 196906477841 - 2³⁰ = 195832736017 is a prime.

It is a super-2 number, since 2×196906477841² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196906477871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98453238920 + 98453238921.

It is an arithmetic number, because the mean of its divisors is an integer number (98453238921).

Almost surely, 2^196906477841 is an apocalyptic number.

It is an amenable number.

196906477841 is a deficient number, since it is larger than the sum of its proper divisors (1).

196906477841 is an equidigital number, since it uses as much as digits as its factorization.

196906477841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 196906477841 in words is "one hundred ninety-six billion, nine hundred six million, four hundred seventy-seven thousand, eight hundred forty-one".