13004042643 has 32 divisors (see below), whose sum is σ = 20291040000. Its totient is φ = 8208288576.

The previous prime is 13004042621. The next prime is 13004042651. The reversal of 13004042643 is 34624040031.

13004042643 is a `hidden beast` number, since 13 + 0 + 0 + 4 + 0 + 4 + 2 + 643 = 666.

13004042643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13004042643 - 2²² = 12999848339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13004044643) 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 31 ways as a sum of consecutive naturals, for example, 1008823 + ... + 1021631.

It is an arithmetic number, because the mean of its divisors is an integer number (634095000).

Almost surely, 2^13004042643 is an apocalyptic number.

13004042643 is a deficient number, since it is larger than the sum of its proper divisors (7286997357).

13004042643 is a wasteful number, since it uses less digits than its factorization.

13004042643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14816 (or 14810 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13004042643 its reverse (34624040031), we get a palindrome (47628082674).

The spelling of 13004042643 in words is "thirteen billion, four million, forty-two thousand, six hundred forty-three".