1690393393699 has 2 divisors, whose sum is σ = 1690393393700. Its totient is φ = 1690393393698.

The previous prime is 1690393393691. The next prime is 1690393393723. The reversal of 1690393393699 is 9963933930961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1690393393699 - 2³ = 1690393393691 is a prime.

It is a super-5 number, since 5×1690393393699⁵ (a number of 62 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3, 2.

It is not a weakly prime, because it can be changed into another prime (1690393393691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845196696849 + 845196696850.

It is an arithmetic number, because the mean of its divisors is an integer number (845196696850).

Almost surely, 2^{1690393393699} is an apocalyptic number.

1690393393699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690393393699 is an equidigital number, since it uses as much as digits as its factorization.

1690393393699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172186884, while the sum is 70.

The spelling of 1690393393699 in words is "one trillion, six hundred ninety billion, three hundred ninety-three million, three hundred ninety-three thousand, six hundred ninety-nine".