2170847851063 has 2 divisors, whose sum is σ = 2170847851064. Its totient is φ = 2170847851062.

The previous prime is 2170847851061. The next prime is 2170847851129. The reversal of 2170847851063 is 3601587480712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2170847851063 - 2¹ = 2170847851061 is a prime.

Together with 2170847851061, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2170847851063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170847851061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085423925531 + 1085423925532.

It is an arithmetic number, because the mean of its divisors is an integer number (1085423925532).

Almost surely, 2^{2170847851063} is an apocalyptic number.

2170847851063 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170847851063 is an equidigital number, since it uses as much as digits as its factorization.

2170847851063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 2170847851063 in words is "two trillion, one hundred seventy billion, eight hundred forty-seven million, eight hundred fifty-one thousand, sixty-three".