1685097100431 has 6 divisors (see below), whose sum is σ = 2434029145080. Its totient is φ = 1123398066948.

The previous prime is 1685097100343. The next prime is 1685097100447. The reversal of 1685097100431 is 1340017905861.

1685097100431 is a `hidden beast` number, since 1 + 6 + 8 + 509 + 7 + 100 + 4 + 31 = 666.

It is not a de Polignac number, because 1685097100431 - 2¹⁵ = 1685097067663 is a prime.

It is a super-2 number, since 2×1685097100431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685097100031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93616505571 + ... + 93616505588.

It is an arithmetic number, because the mean of its divisors is an integer number (405671524180).

Almost surely, 2^{1685097100431} is an apocalyptic number.

1685097100431 is a deficient number, since it is larger than the sum of its proper divisors (748932044649).

1685097100431 is a wasteful number, since it uses less digits than its factorization.

1685097100431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187233011165 (or 187233011162 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 1685097100431 in words is "one trillion, six hundred eighty-five billion, ninety-seven million, one hundred thousand, four hundred thirty-one".