1008109294919 has 2 divisors, whose sum is σ = 1008109294920. Its totient is φ = 1008109294918.

The previous prime is 1008109294909. The next prime is 1008109294991. The reversal of 1008109294919 is 9194929018001.

Together with next prime (1008109294991) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9194929018001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1008109294919 is a prime.

It is a super-2 number, since 2×1008109294919² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1008109294909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504054647459 + 504054647460.

It is an arithmetic number, because the mean of its divisors is an integer number (504054647460).

Almost surely, 2^{1008109294919} is an apocalyptic number.

1008109294919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1008109294919 is an equidigital number, since it uses as much as digits as its factorization.

1008109294919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 53.

The spelling of 1008109294919 in words is "one trillion, eight billion, one hundred nine million, two hundred ninety-four thousand, nine hundred nineteen".