2040646523 has 2 divisors, whose sum is σ = 2040646524. Its totient is φ = 2040646522.

The previous prime is 2040646507. The next prime is 2040646583. The reversal of 2040646523 is 3256460402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2040646523 - 2⁴ = 2040646507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2040646523.

It is not a weakly prime, because it can be changed into another prime (2040646583) 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 as a sum of consecutive naturals, namely, 1020323261 + 1020323262.

It is an arithmetic number, because the mean of its divisors is an integer number (1020323262).

Almost surely, 2^2040646523 is an apocalyptic number.

2040646523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040646523 is an equidigital number, since it uses as much as digits as its factorization.

2040646523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 2040646523 is about 45173.5157254779. The cubic root of 2040646523 is about 1268.3991077400.

The spelling of 2040646523 in words is "two billion, forty million, six hundred forty-six thousand, five hundred twenty-three".