1701868701989 has 2 divisors, whose sum is σ = 1701868701990. Its totient is φ = 1701868701988.

The previous prime is 1701868701959. The next prime is 1701868702063. The reversal of 1701868701989 is 9891078681071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1248996232225 + 452872469764 = 1117585^2 + 672958^2 .

It is a cyclic number.

It is not a de Polignac number, because 1701868701989 - 2³² = 1697573734693 is a prime.

It is a super-2 number, since 2×1701868701989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1701868701959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850934350994 + 850934350995.

It is an arithmetic number, because the mean of its divisors is an integer number (850934350995).

Almost surely, 2^{1701868701989} is an apocalyptic number.

It is an amenable number.

1701868701989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1701868701989 is an equidigital number, since it uses as much as digits as its factorization.

1701868701989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 65.

The spelling of 1701868701989 in words is "one trillion, seven hundred one billion, eight hundred sixty-eight million, seven hundred one thousand, nine hundred eighty-nine".