2000787109 has 2 divisors, whose sum is σ = 2000787110. Its totient is φ = 2000787108.

The previous prime is 2000787097. The next prime is 2000787149. The reversal of 2000787109 is 9017870002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1333856484 + 666930625 = 36522^2 + 25825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000787109 - 2⁷ = 2000786981 is a prime.

It is a super-3 number, since 3×2000787109³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000787149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000393554 + 1000393555.

It is an arithmetic number, because the mean of its divisors is an integer number (1000393555).

Almost surely, 2^2000787109 is an apocalyptic number.

It is an amenable number.

2000787109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000787109 is an equidigital number, since it uses as much as digits as its factorization.

2000787109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2000787109 is about 44730.1588304804. The cubic root of 2000787109 is about 1260.0863107500.

The spelling of 2000787109 in words is "two billion, seven hundred eighty-seven thousand, one hundred nine".