2620009871 has 2 divisors, whose sum is σ = 2620009872. Its totient is φ = 2620009870.

The previous prime is 2620009831. The next prime is 2620009937. The reversal of 2620009871 is 1789000262.

It is a happy number.

2620009871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2620009871 - 2²² = 2615815567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620009831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310004935 + 1310004936.

It is an arithmetic number, because the mean of its divisors is an integer number (1310004936).

Almost surely, 2^2620009871 is an apocalyptic number.

2620009871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620009871 is an equidigital number, since it uses as much as digits as its factorization.

2620009871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2620009871 is about 51186.0319911595. The cubic root of 2620009871 is about 1378.5874138599.

The spelling of 2620009871 in words is "two billion, six hundred twenty million, nine thousand, eight hundred seventy-one".