10243645654321 has 8 divisors (see below), whose sum is σ = 10310440894560. Its totient is φ = 10176898594752.

The previous prime is 10243645654309. The next prime is 10243645654343. The reversal of 10243645654321 is 12345654634201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10243645654321 - 2⁵ = 10243645654289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10243645664321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11618515 + ... + 12469048.

It is an arithmetic number, because the mean of its divisors is an integer number (1288805111820).

Almost surely, 2^{10243645654321} is an apocalyptic number.

It is an amenable number.

10243645654321 is a deficient number, since it is larger than the sum of its proper divisors (66795240239).

10243645654321 is a wasteful number, since it uses less digits than its factorization.

10243645654321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24090335.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 10243645654321 in words is "ten trillion, two hundred forty-three billion, six hundred forty-five million, six hundred fifty-four thousand, three hundred twenty-one".