1634918793499 has 2 divisors, whose sum is σ = 1634918793500. Its totient is φ = 1634918793498.

The previous prime is 1634918793481. The next prime is 1634918793533. The reversal of 1634918793499 is 9943978194361.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1634918793499 is a prime.

It is a super-2 number, since 2×1634918793499² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1634918793439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817459396749 + 817459396750.

It is an arithmetic number, because the mean of its divisors is an integer number (817459396750).

Almost surely, 2^{1634918793499} is an apocalyptic number.

1634918793499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634918793499 is an equidigital number, since it uses as much as digits as its factorization.

1634918793499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317447424, while the sum is 73.

The spelling of 1634918793499 in words is "one trillion, six hundred thirty-four billion, nine hundred eighteen million, seven hundred ninety-three thousand, four hundred ninety-nine".