464644354525009 has 2 divisors, whose sum is σ = 464644354525010. Its totient is φ = 464644354525008.

The previous prime is 464644354525003. The next prime is 464644354525031. The reversal of 464644354525009 is 900525453446464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405872275497984 + 58772079027025 = 20146272^2 + 7666295^2 .

It is a cyclic number.

It is not a de Polignac number, because 464644354525009 - 2¹³ = 464644354516817 is a prime.

It is not a weakly prime, because it can be changed into another prime (464644354525003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232322177262504 + 232322177262505.

It is an arithmetic number, because the mean of its divisors is an integer number (232322177262505).

Almost surely, 2^{464644354525009} is an apocalyptic number.

It is an amenable number.

464644354525009 is a deficient number, since it is larger than the sum of its proper divisors (1).

464644354525009 is an equidigital number, since it uses as much as digits as its factorization.

464644354525009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832000, while the sum is 61.

The spelling of 464644354525009 in words is "four hundred sixty-four trillion, six hundred forty-four billion, three hundred fifty-four million, five hundred twenty-five thousand, nine".