2620940085 has 120 divisors (see below), whose sum is σ = 5118067680. Its totient is φ = 1278934272.

The previous prime is 2620940083. The next prime is 2620940117. The reversal of 2620940085 is 5800490262.

It is a happy number.

It is not a de Polignac number, because 2620940085 - 2¹ = 2620940083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620940083) 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 119 ways as a sum of consecutive naturals, for example, 29448721 + ... + 29448809.

It is an arithmetic number, because the mean of its divisors is an integer number (42650564).

Almost surely, 2^2620940085 is an apocalyptic number.

It is an amenable number.

2620940085 is a deficient number, since it is larger than the sum of its proper divisors (2497127595).

2620940085 is an equidigital number, since it uses as much as digits as its factorization.

2620940085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2620940085 is about 51195.1177848044. The cubic root of 2620940085 is about 1378.7505467791.

The spelling of 2620940085 in words is "two billion, six hundred twenty million, nine hundred forty thousand, eighty-five".