10343656643 has 4 divisors (see below), whose sum is σ = 10344494880. Its totient is φ = 10342818408.

The previous prime is 10343656637. The next prime is 10343656667. The reversal of 10343656643 is 34665634301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10343656643 - 2²⁴ = 10326879427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10343656643.

It is not an unprimeable number, because it can be changed into a prime (10343653643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400328 + ... + 425381.

It is an arithmetic number, because the mean of its divisors is an integer number (2586123720).

Almost surely, 2^10343656643 is an apocalyptic number.

10343656643 is a deficient number, since it is larger than the sum of its proper divisors (838237).

10343656643 is an equidigital number, since it uses as much as digits as its factorization.

10343656643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838236.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 10343656643 in words is "ten billion, three hundred forty-three million, six hundred fifty-six thousand, six hundred forty-three".