2113694447 has 2 divisors, whose sum is σ = 2113694448. Its totient is φ = 2113694446.

The previous prime is 2113694423. The next prime is 2113694489. The reversal of 2113694447 is 7444963112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113694447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113699447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056847223 + 1056847224.

It is an arithmetic number, because the mean of its divisors is an integer number (1056847224).

Almost surely, 2^2113694447 is an apocalyptic number.

2113694447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113694447 is an equidigital number, since it uses as much as digits as its factorization.

2113694447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 2113694447 is about 45974.9328112614. The cubic root of 2113694447 is about 1283.3567587711.

The spelling of 2113694447 in words is "two billion, one hundred thirteen million, six hundred ninety-four thousand, four hundred forty-seven".