2081915573 has 2 divisors, whose sum is σ = 2081915574. Its totient is φ = 2081915572.

The previous prime is 2081915509. The next prime is 2081915579. The reversal of 2081915573 is 3755191802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960541284 + 121374289 = 44278^2 + 11017^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081915573 - 2⁶ = 2081915509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2081915573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081915579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040957786 + 1040957787.

It is an arithmetic number, because the mean of its divisors is an integer number (1040957787).

Almost surely, 2^2081915573 is an apocalyptic number.

It is an amenable number.

2081915573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081915573 is an equidigital number, since it uses as much as digits as its factorization.

2081915573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 2081915573 is about 45628.0130292784. The cubic root of 2081915573 is about 1276.8926034132.

The spelling of 2081915573 in words is "two billion, eighty-one million, nine hundred fifteen thousand, five hundred seventy-three".