1008623967709 has 2 divisors, whose sum is σ = 1008623967710. Its totient is φ = 1008623967708.

The previous prime is 1008623967707. The next prime is 1008623967803. The reversal of 1008623967709 is 9077693268001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 827275745209 + 181348222500 = 909547^2 + 425850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008623967709 - 2¹ = 1008623967707 is a prime.

Together with 1008623967707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1008623967707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504311983854 + 504311983855.

It is an arithmetic number, because the mean of its divisors is an integer number (504311983855).

Almost surely, 2^{1008623967709} is an apocalyptic number.

It is an amenable number.

1008623967709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008623967709 is an equidigital number, since it uses as much as digits as its factorization.

1008623967709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 1008623967709 in words is "one trillion, eight billion, six hundred twenty-three million, nine hundred sixty-seven thousand, seven hundred nine".