2818212009293 has 2 divisors, whose sum is σ = 2818212009294. Its totient is φ = 2818212009292.

The previous prime is 2818212009281. The next prime is 2818212009307. The reversal of 2818212009293 is 3929002128182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2716886296804 + 101325712489 = 1648298^2 + 318317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2818212009293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2818212009593) 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, 1409106004646 + 1409106004647.

It is an arithmetic number, because the mean of its divisors is an integer number (1409106004647).

Almost surely, 2^{2818212009293} is an apocalyptic number.

It is an amenable number.

2818212009293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2818212009293 is an equidigital number, since it uses as much as digits as its factorization.

2818212009293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 2818212009293 in words is "two trillion, eight hundred eighteen billion, two hundred twelve million, nine thousand, two hundred ninety-three".