20170002036871 has 2 divisors, whose sum is σ = 20170002036872. Its totient is φ = 20170002036870.

The previous prime is 20170002036823. The next prime is 20170002036929. The reversal of 20170002036871 is 17863020007102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20170002036871 - 2²⁹ = 20169465165959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20170002036871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20170002046871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10085001018435 + 10085001018436.

It is an arithmetic number, because the mean of its divisors is an integer number (10085001018436).

Almost surely, 2^{20170002036871} is an apocalyptic number.

20170002036871 is a deficient number, since it is larger than the sum of its proper divisors (1).

20170002036871 is an equidigital number, since it uses as much as digits as its factorization.

20170002036871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 20170002036871 in words is "twenty trillion, one hundred seventy billion, two million, thirty-six thousand, eight hundred seventy-one".