418804279961 has 2 divisors, whose sum is σ = 418804279962. Its totient is φ = 418804279960.

The previous prime is 418804279889. The next prime is 418804279969. The reversal of 418804279961 is 169972408814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211214695561 + 207589584400 = 459581^2 + 455620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-418804279961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 418804279961.

It is not a weakly prime, because it can be changed into another prime (418804279969) 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, 209402139980 + 209402139981.

It is an arithmetic number, because the mean of its divisors is an integer number (209402139981).

Almost surely, 2^418804279961 is an apocalyptic number.

It is an amenable number.

418804279961 is a deficient number, since it is larger than the sum of its proper divisors (1).

418804279961 is an equidigital number, since it uses as much as digits as its factorization.

418804279961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 418804279961 in words is "four hundred eighteen billion, eight hundred four million, two hundred seventy-nine thousand, nine hundred sixty-one".