2040646517 has 32 divisors (see below), whose sum is σ = 2647916544. Its totient is φ = 1529150400.

The previous prime is 2040646507. The next prime is 2040646523. The reversal of 2040646517 is 7156460402.

It is a cyclic number.

It is not a de Polignac number, because 2040646517 - 2⁴ = 2040646501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040646507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124892 + ... + 140282.

It is an arithmetic number, because the mean of its divisors is an integer number (82747392).

Almost surely, 2^2040646517 is an apocalyptic number.

It is an amenable number.

2040646517 is a deficient number, since it is larger than the sum of its proper divisors (607270027).

2040646517 is a wasteful number, since it uses less digits than its factorization.

2040646517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15489.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2040646517 is about 45173.5156590673. The cubic root of 2040646517 is about 1268.3991064968.

The spelling of 2040646517 in words is "two billion, forty million, six hundred forty-six thousand, five hundred seventeen".