2189830146397 has 2 divisors, whose sum is σ = 2189830146398. Its totient is φ = 2189830146396.

The previous prime is 2189830146379. The next prime is 2189830146401. The reversal of 2189830146397 is 7936410389812.

Together with previous prime (2189830146379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1486531546756 + 703298599641 = 1219234^2 + 838629^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189830146397 - 2³⁵ = 2155470408029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189830146347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094915073198 + 1094915073199.

It is an arithmetic number, because the mean of its divisors is an integer number (1094915073199).

Almost surely, 2^{2189830146397} is an apocalyptic number.

It is an amenable number.

2189830146397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189830146397 is an equidigital number, since it uses as much as digits as its factorization.

2189830146397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 2189830146397 in words is "two trillion, one hundred eighty-nine billion, eight hundred thirty million, one hundred forty-six thousand, three hundred ninety-seven".