13333858645 has 4 divisors (see below), whose sum is σ = 16000630380. Its totient is φ = 10667086912.

The previous prime is 13333858631. The next prime is 13333858649. The reversal of 13333858645 is 54685833331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54685833331 = 61 ⋅896489071.

It can be written as a sum of positive squares in 2 ways, for example, as 2380561681 + 10953296964 = 48791^2 + 104658^2 .

It is a cyclic number.

It is not a de Polignac number, because 13333858645 - 2¹¹ = 13333856597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333858649) 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, 1333385860 + ... + 1333385869.

It is an arithmetic number, because the mean of its divisors is an integer number (4000157595).

Almost surely, 2^13333858645 is an apocalyptic number.

It is an amenable number.

13333858645 is a deficient number, since it is larger than the sum of its proper divisors (2666771735).

13333858645 is an equidigital number, since it uses as much as digits as its factorization.

13333858645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666771734.

The product of its digits is 3110400, while the sum is 49.

The spelling of 13333858645 in words is "thirteen billion, three hundred thirty-three million, eight hundred fifty-eight thousand, six hundred forty-five".