2164203874139 has 2 divisors, whose sum is σ = 2164203874140. Its totient is φ = 2164203874138.

The previous prime is 2164203874123. The next prime is 2164203874181. The reversal of 2164203874139 is 9314783024612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164203874139 - 2⁴ = 2164203874123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164203874109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082101937069 + 1082101937070.

It is an arithmetic number, because the mean of its divisors is an integer number (1082101937070).

Almost surely, 2^{2164203874139} is an apocalyptic number.

2164203874139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164203874139 is an equidigital number, since it uses as much as digits as its factorization.

2164203874139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 2164203874139 in words is "two trillion, one hundred sixty-four billion, two hundred three million, eight hundred seventy-four thousand, one hundred thirty-nine".