64305626461 has 2 divisors, whose sum is σ = 64305626462. Its totient is φ = 64305626460.

The previous prime is 64305626459. The next prime is 64305626467. The reversal of 64305626461 is 16462650346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63955375236 + 350251225 = 252894^2 + 18715^2 .

It is a cyclic number.

It is not a de Polignac number, because 64305626461 - 2¹ = 64305626459 is a prime.

Together with 64305626459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64305626467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152813230 + 32152813231.

It is an arithmetic number, because the mean of its divisors is an integer number (32152813231).

Almost surely, 2^64305626461 is an apocalyptic number.

It is an amenable number.

64305626461 is a deficient number, since it is larger than the sum of its proper divisors (1).

64305626461 is an equidigital number, since it uses as much as digits as its factorization.

64305626461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 64305626461 in words is "sixty-four billion, three hundred five million, six hundred twenty-six thousand, four hundred sixty-one".