2051716447 has 8 divisors (see below), whose sum is σ = 2315417040. Its totient is φ = 1800879360.

The previous prime is 2051716397. The next prime is 2051716481. The reversal of 2051716447 is 7446171502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051716447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051716487) 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 in 7 ways as a sum of consecutive naturals, for example, 3215538 + ... + 3216175.

It is an arithmetic number, because the mean of its divisors is an integer number (289427130).

Almost surely, 2^2051716447 is an apocalyptic number.

2051716447 is a deficient number, since it is larger than the sum of its proper divisors (263700593).

2051716447 is a wasteful number, since it uses less digits than its factorization.

2051716447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431753.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2051716447 is about 45295.8767108001. The cubic root of 2051716447 is about 1270.6885403928.

Adding to 2051716447 its reverse (7446171502), we get a palindrome (9497887949).

The spelling of 2051716447 in words is "two billion, fifty-one million, seven hundred sixteen thousand, four hundred forty-seven".