9534679643 has 2 divisors, whose sum is σ = 9534679644. Its totient is φ = 9534679642.

The previous prime is 9534679639. The next prime is 9534679657. The reversal of 9534679643 is 3469764359.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9534679643 - 2² = 9534679639 is a prime.

It is not a weakly prime, because it can be changed into another prime (9534679043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4767339821 + 4767339822.

It is an arithmetic number, because the mean of its divisors is an integer number (4767339822).

Almost surely, 2^9534679643 is an apocalyptic number.

9534679643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9534679643 is an equidigital number, since it uses as much as digits as its factorization.

9534679643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 56.

The square root of 9534679643 is about 97645.6842005831. The cubic root of 9534679643 is about 2120.4858002487.

The spelling of 9534679643 in words is "nine billion, five hundred thirty-four million, six hundred seventy-nine thousand, six hundred forty-three".