2681851573 has 2 divisors, whose sum is σ = 2681851574. Its totient is φ = 2681851572.

The previous prime is 2681851493. The next prime is 2681851597. The reversal of 2681851573 is 3751581862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1432016964 + 1249834609 = 37842^2 + 35353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2681851573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681852573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340925786 + 1340925787.

It is an arithmetic number, because the mean of its divisors is an integer number (1340925787).

Almost surely, 2^2681851573 is an apocalyptic number.

It is an amenable number.

2681851573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681851573 is an equidigital number, since it uses as much as digits as its factorization.

2681851573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The square root of 2681851573 is about 51786.5964608604. The cubic root of 2681851573 is about 1389.3497248172.

The spelling of 2681851573 in words is "two billion, six hundred eighty-one million, eight hundred fifty-one thousand, five hundred seventy-three".