2140171001867 has 2 divisors, whose sum is σ = 2140171001868. Its totient is φ = 2140171001866.

The previous prime is 2140171001803. The next prime is 2140171001887. The reversal of 2140171001867 is 7681001710412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2140171001867 - 2⁶ = 2140171001803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140171001867.

It is not a weakly prime, because it can be changed into another prime (2140171001887) 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, 1070085500933 + 1070085500934.

It is an arithmetic number, because the mean of its divisors is an integer number (1070085500934).

Almost surely, 2^{2140171001867} is an apocalyptic number.

2140171001867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140171001867 is an equidigital number, since it uses as much as digits as its factorization.

2140171001867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 2140171001867 in words is "two trillion, one hundred forty billion, one hundred seventy-one million, one thousand, eight hundred sixty-seven".