13293820447 has 2 divisors, whose sum is σ = 13293820448. Its totient is φ = 13293820446.

The previous prime is 13293820373. The next prime is 13293820451. The reversal of 13293820447 is 74402839231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13293820447 - 2²³ = 13285431839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13293820457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6646910223 + 6646910224.

It is an arithmetic number, because the mean of its divisors is an integer number (6646910224).

Almost surely, 2^13293820447 is an apocalyptic number.

13293820447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13293820447 is an equidigital number, since it uses as much as digits as its factorization.

13293820447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 13293820447 in words is "thirteen billion, two hundred ninety-three million, eight hundred twenty thousand, four hundred forty-seven".