39290304689 has 2 divisors, whose sum is σ = 39290304690. Its totient is φ = 39290304688.

The previous prime is 39290304593. The next prime is 39290304727. The reversal of 39290304689 is 98640309293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37439154064 + 1851150625 = 193492^2 + 43025^2 .

It is an emirp because it is prime and its reverse (98640309293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39290304689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39290304689.

It is not a weakly prime, because it can be changed into another prime (39290904689) 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 as a sum of consecutive naturals, namely, 19645152344 + 19645152345.

It is an arithmetic number, because the mean of its divisors is an integer number (19645152345).

Almost surely, 2^39290304689 is an apocalyptic number.

It is an amenable number.

39290304689 is a deficient number, since it is larger than the sum of its proper divisors (1).

39290304689 is an equidigital number, since it uses as much as digits as its factorization.

39290304689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 39290304689 in words is "thirty-nine billion, two hundred ninety million, three hundred four thousand, six hundred eighty-nine".