1690394442301 has 2 divisors, whose sum is σ = 1690394442302. Its totient is φ = 1690394442300.

The previous prime is 1690394442263. The next prime is 1690394442367. The reversal of 1690394442301 is 1032444930961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1682325732025 + 8068710276 = 1297045^2 + 89826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1690394442301 - 2²⁷ = 1690260224573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1690394442701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845197221150 + 845197221151.

It is an arithmetic number, because the mean of its divisors is an integer number (845197221151).

Almost surely, 2^{1690394442301} is an apocalyptic number.

It is an amenable number.

1690394442301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690394442301 is an equidigital number, since it uses as much as digits as its factorization.

1690394442301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 1690394442301 in words is "one trillion, six hundred ninety billion, three hundred ninety-four million, four hundred forty-two thousand, three hundred one".