3215306604427 has 2 divisors, whose sum is σ = 3215306604428. Its totient is φ = 3215306604426.

The previous prime is 3215306604397. The next prime is 3215306604449. The reversal of 3215306604427 is 7244066035123.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3215306604427 is a prime.

It is not a weakly prime, because it can be changed into another prime (3215306604527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607653302213 + 1607653302214.

It is an arithmetic number, because the mean of its divisors is an integer number (1607653302214).

Almost surely, 2^{3215306604427} is an apocalyptic number.

3215306604427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215306604427 is an equidigital number, since it uses as much as digits as its factorization.

3215306604427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 3215306604427 in words is "three trillion, two hundred fifteen billion, three hundred six million, six hundred four thousand, four hundred twenty-seven".