999999999999794 has 64 divisors (see below), whose sum is σ = 1575837228053088. Its totient is φ = 475471370649600.

The previous prime is 999999999999659. The next prime is 999999999999809. The reversal of 999999999999794 is 497999999999999.

It can be written as a sum of positive squares in 16 ways, for example, as 20325336939769 + 979674663060025 = 4508363^2 + 31299755^2 .

It is a super-9 number, since 9×999999999999794⁹ (a number of 136 digits) contains 999999999 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614011034 + ... + 615637514.

Almost surely, 2^{999999999999794} is an apocalyptic number.

999999999999794 is a deficient number, since it is larger than the sum of its proper divisors (575837228053294).

999999999999794 is a wasteful number, since it uses less digits than its factorization.

999999999999794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627503.

The product of its digits is 71172243193212, while the sum is 128.

The spelling of 999999999999794 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred ninety-four".