6401634593 has 2 divisors, whose sum is σ = 6401634594. Its totient is φ = 6401634592.

The previous prime is 6401634583. The next prime is 6401634647. The reversal of 6401634593 is 3954361046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4299687184 + 2101947409 = 65572^2 + 45847^2 .

It is a cyclic number.

It is not a de Polignac number, because 6401634593 - 2¹⁰ = 6401633569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6401634593.

It is not a weakly prime, because it can be changed into another prime (6401634553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200817296 + 3200817297.

It is an arithmetic number, because the mean of its divisors is an integer number (3200817297).

Almost surely, 2^6401634593 is an apocalyptic number.

It is an amenable number.

6401634593 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401634593 is an equidigital number, since it uses as much as digits as its factorization.

6401634593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 6401634593 is about 80010.2155540154. The cubic root of 6401634593 is about 1856.7935847530.

The spelling of 6401634593 in words is "six billion, four hundred one million, six hundred thirty-four thousand, five hundred ninety-three".