389405704407 has 4 divisors (see below), whose sum is σ = 519207605880. Its totient is φ = 259603802936.

The previous prime is 389405704397. The next prime is 389405704417. The reversal of 389405704407 is 704407504983.

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

It is an interprime number because it is at equal distance from previous prime (389405704397) and next prime (389405704417).

It is a cyclic number.

It is not a de Polignac number, because 389405704407 - 2⁶ = 389405704343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389405704407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389405704417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64900950732 + ... + 64900950737.

It is an arithmetic number, because the mean of its divisors is an integer number (129801901470).

Almost surely, 2^389405704407 is an apocalyptic number.

389405704407 is a deficient number, since it is larger than the sum of its proper divisors (129801901473).

389405704407 is a wasteful number, since it uses less digits than its factorization.

389405704407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129801901472.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 389405704407 in words is "three hundred eighty-nine billion, four hundred five million, seven hundred four thousand, four hundred seven".