2020780517 has 8 divisors (see below), whose sum is σ = 2309784000. Its totient is φ = 1731857184.

The previous prime is 2020780481. The next prime is 2020780519. The reversal of 2020780517 is 7150870202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020780517 - 2²⁴ = 2004003301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020780519) 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 7 ways as a sum of consecutive naturals, for example, 50609 + ... + 81257.

It is an arithmetic number, because the mean of its divisors is an integer number (288723000).

Almost surely, 2^2020780517 is an apocalyptic number.

It is an amenable number.

2020780517 is a deficient number, since it is larger than the sum of its proper divisors (289003483).

2020780517 is an equidigital number, since it uses as much as digits as its factorization.

2020780517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40075.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 2020780517 is about 44953.0924075308. The cubic root of 2020780517 is about 1264.2696585671.

The spelling of 2020780517 in words is "two billion, twenty million, seven hundred eighty thousand, five hundred seventeen".