2170717651 has 2 divisors, whose sum is σ = 2170717652. Its totient is φ = 2170717650.

The previous prime is 2170717609. The next prime is 2170717693. The reversal of 2170717651 is 1567170712.

It is a balanced prime because it is at equal distance from previous prime (2170717609) and next prime (2170717693).

It is a cyclic number.

It is not a de Polignac number, because 2170717651 - 2²⁷ = 2036499923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2170717651.

It is not a weakly prime, because it can be changed into another prime (2170717751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085358825 + 1085358826.

It is an arithmetic number, because the mean of its divisors is an integer number (1085358826).

Almost surely, 2^2170717651 is an apocalyptic number.

2170717651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170717651 is an equidigital number, since it uses as much as digits as its factorization.

2170717651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580, while the sum is 37.

The square root of 2170717651 is about 46590.9610439622. The cubic root of 2170717651 is about 1294.7952948845.

The spelling of 2170717651 in words is "two billion, one hundred seventy million, seven hundred seventeen thousand, six hundred fifty-one".