9564464729 has 2 divisors, whose sum is σ = 9564464730. Its totient is φ = 9564464728.

The previous prime is 9564464681. The next prime is 9564464779. The reversal of 9564464729 is 9274644659.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9518929225 + 45535504 = 97565^2 + 6748^2 .

It is a cyclic number.

It is not a de Polignac number, because 9564464729 - 2¹⁶ = 9564399193 is a prime.

It is not a weakly prime, because it can be changed into another prime (9564464779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4782232364 + 4782232365.

It is an arithmetic number, because the mean of its divisors is an integer number (4782232365).

Almost surely, 2^9564464729 is an apocalyptic number.

It is an amenable number.

9564464729 is a deficient number, since it is larger than the sum of its proper divisors (1).

9564464729 is an equidigital number, since it uses as much as digits as its factorization.

9564464729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 56.

The square root of 9564464729 is about 97798.0814177865. The cubic root of 9564464729 is about 2122.6915446657.

The spelling of 9564464729 in words is "nine billion, five hundred sixty-four million, four hundred sixty-four thousand, seven hundred twenty-nine".