1683395943407 has 2 divisors, whose sum is σ = 1683395943408. Its totient is φ = 1683395943406.

The previous prime is 1683395943401. The next prime is 1683395943431. The reversal of 1683395943407 is 7043495933861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1683395943407 - 2¹⁰ = 1683395942383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1683395943407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1683395943401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841697971703 + 841697971704.

It is an arithmetic number, because the mean of its divisors is an integer number (841697971704).

Almost surely, 2^{1683395943407} is an apocalyptic number.

1683395943407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683395943407 is an equidigital number, since it uses as much as digits as its factorization.

1683395943407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 1683395943407 in words is "one trillion, six hundred eighty-three billion, three hundred ninety-five million, nine hundred forty-three thousand, four hundred seven".