1685276863 has 2 divisors, whose sum is σ = 1685276864. Its totient is φ = 1685276862.

The previous prime is 1685276837. The next prime is 1685276869. The reversal of 1685276863 is 3686725861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1685276863 - 2²¹ = 1683179711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1685276863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685276869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842638431 + 842638432.

It is an arithmetic number, because the mean of its divisors is an integer number (842638432).

Almost surely, 2^1685276863 is an apocalyptic number.

1685276863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685276863 is an equidigital number, since it uses as much as digits as its factorization.

1685276863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The square root of 1685276863 is about 41052.1237331274. The cubic root of 1685276863 is about 1190.0277429212.

The spelling of 1685276863 in words is "one billion, six hundred eighty-five million, two hundred seventy-six thousand, eight hundred sixty-three".