643315462262633 has 16 divisors (see below), whose sum is σ = 702794508929280. Its totient is φ = 586529738186496.

The previous prime is 643315462262537. The next prime is 643315462262647. The reversal of 643315462262633 is 336262264513346.

It is not a de Polignac number, because 643315462262633 - 2¹⁰ = 643315462261609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (643315468262633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4518926435 + ... + 4519068792.

It is an arithmetic number, because the mean of its divisors is an integer number (43924656808080).

Almost surely, 2^{643315462262633} is an apocalyptic number.

It is an amenable number.

643315462262633 is a deficient number, since it is larger than the sum of its proper divisors (59479046666647).

643315462262633 is a wasteful number, since it uses less digits than its factorization.

643315462262633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037995376.

The product of its digits is 67184640, while the sum is 56.

The spelling of 643315462262633 in words is "six hundred forty-three trillion, three hundred fifteen billion, four hundred sixty-two million, two hundred sixty-two thousand, six hundred thirty-three".