9640279567 has 2 divisors, whose sum is σ = 9640279568. Its totient is φ = 9640279566.

The previous prime is 9640279559. The next prime is 9640279577. The reversal of 9640279567 is 7659720469.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9640279567 - 2³ = 9640279559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9640279577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820139783 + 4820139784.

It is an arithmetic number, because the mean of its divisors is an integer number (4820139784).

Almost surely, 2^9640279567 is an apocalyptic number.

9640279567 is a deficient number, since it is larger than the sum of its proper divisors (1).

9640279567 is an equidigital number, since it uses as much as digits as its factorization.

9640279567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 9640279567 is about 98184.9253551684. The cubic root of 9640279567 is about 2128.2854509684.

The spelling of 9640279567 in words is "nine billion, six hundred forty million, two hundred seventy-nine thousand, five hundred sixty-seven".