6404736793339 has 4 divisors (see below), whose sum is σ = 6404768427856. Its totient is φ = 6404705158824.

The previous prime is 6404736793333. The next prime is 6404736793391. The reversal of 6404736793339 is 9333976374046.

6404736793339 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6404736793339 - 2⁵ = 6404736793307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6404736793333) 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, 15511599 + ... + 15919144.

It is an arithmetic number, because the mean of its divisors is an integer number (1601192106964).

Almost surely, 2^{6404736793339} is an apocalyptic number.

6404736793339 is a deficient number, since it is larger than the sum of its proper divisors (31634517).

6404736793339 is a wasteful number, since it uses less digits than its factorization.

6404736793339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31634516.

The product of its (nonzero) digits is 185177664, while the sum is 64.

The spelling of 6404736793339 in words is "six trillion, four hundred four billion, seven hundred thirty-six million, seven hundred ninety-three thousand, three hundred thirty-nine".