464644471240249 has 2 divisors, whose sum is σ = 464644471240250. Its totient is φ = 464644471240248.

The previous prime is 464644471240247. The next prime is 464644471240309. The reversal of 464644471240249 is 942042174446464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269598108430249 + 195046362810000 = 16419443^2 + 13965900^2 .

It is a cyclic number.

It is not a de Polignac number, because 464644471240249 - 2¹ = 464644471240247 is a prime.

Together with 464644471240247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (464644471240247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232322235620124 + 232322235620125.

It is an arithmetic number, because the mean of its divisors is an integer number (232322235620125).

Almost surely, 2^{464644471240249} is an apocalyptic number.

It is an amenable number.

464644471240249 is a deficient number, since it is larger than the sum of its proper divisors (1).

464644471240249 is an equidigital number, since it uses as much as digits as its factorization.

464644471240249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148635648, while the sum is 61.

The spelling of 464644471240249 in words is "four hundred sixty-four trillion, six hundred forty-four billion, four hundred seventy-one million, two hundred forty thousand, two hundred forty-nine".