3278394438223 has 2 divisors, whose sum is σ = 3278394438224. Its totient is φ = 3278394438222.

The previous prime is 3278394438197. The next prime is 3278394438427. The reversal of 3278394438223 is 3228344938723.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3278394438223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3278394432223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639197219111 + 1639197219112.

It is an arithmetic number, because the mean of its divisors is an integer number (1639197219112).

Almost surely, 2^{3278394438223} is an apocalyptic number.

3278394438223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3278394438223 is an equidigital number, since it uses as much as digits as its factorization.

3278394438223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 58.

The spelling of 3278394438223 in words is "three trillion, two hundred seventy-eight billion, three hundred ninety-four million, four hundred thirty-eight thousand, two hundred twenty-three".