2620241647 has 2 divisors, whose sum is σ = 2620241648. Its totient is φ = 2620241646.

The previous prime is 2620241629. The next prime is 2620241707. The reversal of 2620241647 is 7461420262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2620241647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620241047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310120823 + 1310120824.

It is an arithmetic number, because the mean of its divisors is an integer number (1310120824).

Almost surely, 2^2620241647 is an apocalyptic number.

2620241647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620241647 is an equidigital number, since it uses as much as digits as its factorization.

2620241647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 2620241647 is about 51188.2959962529. The cubic root of 2620241647 is about 1378.6280643498.

The spelling of 2620241647 in words is "two billion, six hundred twenty million, two hundred forty-one thousand, six hundred forty-seven".