418032621997 has 2 divisors, whose sum is σ = 418032621998. Its totient is φ = 418032621996.

The previous prime is 418032621989. The next prime is 418032622009. The reversal of 418032621997 is 799126230814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279031158756 + 139001463241 = 528234^2 + 372829^2 .

It is a cyclic number.

It is not a de Polignac number, because 418032621997 - 2³ = 418032621989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418032621977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209016310998 + 209016310999.

It is an arithmetic number, because the mean of its divisors is an integer number (209016310999).

Almost surely, 2^418032621997 is an apocalyptic number.

It is an amenable number.

418032621997 is a deficient number, since it is larger than the sum of its proper divisors (1).

418032621997 is an equidigital number, since it uses as much as digits as its factorization.

418032621997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 418032621997 in words is "four hundred eighteen billion, thirty-two million, six hundred twenty-one thousand, nine hundred ninety-seven".