471972198097 has 2 divisors, whose sum is σ = 471972198098. Its totient is φ = 471972198096.

The previous prime is 471972198083. The next prime is 471972198199. The reversal of 471972198097 is 790891279174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300146196736 + 171826001361 = 547856^2 + 414519^2 .

It is a cyclic number.

It is not a de Polignac number, because 471972198097 - 2²³ = 471963809489 is a prime.

It is not a weakly prime, because it can be changed into another prime (471972198017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235986099048 + 235986099049.

It is an arithmetic number, because the mean of its divisors is an integer number (235986099049).

Almost surely, 2^471972198097 is an apocalyptic number.

It is an amenable number.

471972198097 is a deficient number, since it is larger than the sum of its proper divisors (1).

471972198097 is an equidigital number, since it uses as much as digits as its factorization.

471972198097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 64.

The spelling of 471972198097 in words is "four hundred seventy-one billion, nine hundred seventy-two million, one hundred ninety-eight thousand, ninety-seven".