1604713346389 has 2 divisors, whose sum is σ = 1604713346390. Its totient is φ = 1604713346388.

The previous prime is 1604713346329. The next prime is 1604713346479. The reversal of 1604713346389 is 9836433174061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 991597724100 + 613115622289 = 995790^2 + 783017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1604713346389 - 2²¹ = 1604711249237 is a prime.

It is a super-3 number, since 3×1604713346389³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604713346329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802356673194 + 802356673195.

It is an arithmetic number, because the mean of its divisors is an integer number (802356673195).

Almost surely, 2^{1604713346389} is an apocalyptic number.

It is an amenable number.

1604713346389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604713346389 is an equidigital number, since it uses as much as digits as its factorization.

1604713346389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 1604713346389 in words is "one trillion, six hundred four billion, seven hundred thirteen million, three hundred forty-six thousand, three hundred eighty-nine".