1694985975427 has 2 divisors, whose sum is σ = 1694985975428. Its totient is φ = 1694985975426.

The previous prime is 1694985975289. The next prime is 1694985975467. The reversal of 1694985975427 is 7245795894961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1694985975427 - 2¹⁵ = 1694985942659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1694985975467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847492987713 + 847492987714.

It is an arithmetic number, because the mean of its divisors is an integer number (847492987714).

Almost surely, 2^{1694985975427} is an apocalyptic number.

1694985975427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694985975427 is an equidigital number, since it uses as much as digits as its factorization.

1694985975427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1371686400, while the sum is 76.

The spelling of 1694985975427 in words is "one trillion, six hundred ninety-four billion, nine hundred eighty-five million, nine hundred seventy-five thousand, four hundred twenty-seven".