2040645577 has 16 divisors (see below), whose sum is σ = 2142623232. Its totient is φ = 1941891840.

The previous prime is 2040645533. The next prime is 2040645601. The reversal of 2040645577 is 7755460402.

It is a cyclic number.

It is not a de Polignac number, because 2040645577 - 2¹⁹ = 2040121289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040645527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239413 + ... + 247789.

It is an arithmetic number, because the mean of its divisors is an integer number (133913952).

Almost surely, 2^2040645577 is an apocalyptic number.

It is an amenable number.

2040645577 is a deficient number, since it is larger than the sum of its proper divisors (101977655).

2040645577 is an equidigital number, since it uses as much as digits as its factorization.

2040645577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8568.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 2040645577 is about 45173.5052547398. The cubic root of 2040645577 is about 1268.3989117391.

The spelling of 2040645577 in words is "two billion, forty million, six hundred forty-five thousand, five hundred seventy-seven".