1008622661647 has 2 divisors, whose sum is σ = 1008622661648. Its totient is φ = 1008622661646.

The previous prime is 1008622661609. The next prime is 1008622661677. The reversal of 1008622661647 is 7461662268001.

1008622661647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (7461662268001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1008622661647 - 2³¹ = 1006475177999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1008622661647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1008622661677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504311330823 + 504311330824.

It is an arithmetic number, because the mean of its divisors is an integer number (504311330824).

Almost surely, 2^{1008622661647} is an apocalyptic number.

1008622661647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008622661647 is an equidigital number, since it uses as much as digits as its factorization.

1008622661647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 1008622661647 in words is "one trillion, eight billion, six hundred twenty-two million, six hundred sixty-one thousand, six hundred forty-seven".