2620647311 has 2 divisors, whose sum is σ = 2620647312. Its totient is φ = 2620647310.

The previous prime is 2620647299. The next prime is 2620647343. The reversal of 2620647311 is 1137460262.

It is an a-pointer prime, because the next prime (2620647343) can be obtained adding 2620647311 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2620647311 - 2²⁶ = 2553538447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620647511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310323655 + 1310323656.

It is an arithmetic number, because the mean of its divisors is an integer number (1310323656).

Almost surely, 2^2620647311 is an apocalyptic number.

2620647311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620647311 is an equidigital number, since it uses as much as digits as its factorization.

2620647311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2620647311 is about 51192.2583111939. The cubic root of 2620647311 is about 1378.6992067598.

The spelling of 2620647311 in words is "two billion, six hundred twenty million, six hundred forty-seven thousand, three hundred eleven".