1694091340319 has 4 divisors (see below), whose sum is σ = 1936104388944. Its totient is φ = 1452078291696.

The previous prime is 1694091340307. The next prime is 1694091340321. The reversal of 1694091340319 is 9130431904961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1694091340319 - 2⁸ = 1694091340063 is a prime.

It is a super-2 number, since 2×1694091340319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1694091340339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121006524302 + ... + 121006524315.

It is an arithmetic number, because the mean of its divisors is an integer number (484026097236).

Almost surely, 2^{1694091340319} is an apocalyptic number.

1694091340319 is a deficient number, since it is larger than the sum of its proper divisors (242013048625).

1694091340319 is an equidigital number, since it uses as much as digits as its factorization.

1694091340319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242013048624.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 1694091340319 in words is "one trillion, six hundred ninety-four billion, ninety-one million, three hundred forty thousand, three hundred nineteen".