2219890415893 has 2 divisors, whose sum is σ = 2219890415894. Its totient is φ = 2219890415892.

The previous prime is 2219890415881. The next prime is 2219890415903. The reversal of 2219890415893 is 3985140989122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2201656504804 + 18233911089 = 1483798^2 + 135033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219890415893 - 2²⁹ = 2219353544981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2219890415833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109945207946 + 1109945207947.

It is an arithmetic number, because the mean of its divisors is an integer number (1109945207947).

Almost surely, 2^{2219890415893} is an apocalyptic number.

It is an amenable number.

2219890415893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219890415893 is an equidigital number, since it uses as much as digits as its factorization.

2219890415893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 2219890415893 in words is "two trillion, two hundred nineteen billion, eight hundred ninety million, four hundred fifteen thousand, eight hundred ninety-three".