999995793960745 has 16 divisors (see below), whose sum is σ = 1201803990734160. Its totient is φ = 798790681671424.

The previous prime is 999995793960661. The next prime is 999995793960773. The reversal of 999995793960745 is 547069397599999.

999995793960745 is a nontrivial binomial coefficient, being equal to C(44721266, 2).

It can be written as a sum of positive squares in 8 ways, for example, as 9695818943721 + 990299975017024 = 3113811^2 + 31469032^2 .

It is a cyclic number.

It is not a de Polignac number, because 999995793960745 - 2¹⁷ = 999995793829673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107331039 + ... + 116275291.

It is an arithmetic number, because the mean of its divisors is an integer number (75112749420885).

Almost surely, 2^{999995793960745} is an apocalyptic number.

999995793960745 is the 44721265-th triangular number and also the 22360633-rd hexagonal number.

999995793960745 is the 14907089-th centered nonagonal number.

It is an amenable number.

999995793960745 is a deficient number, since it is larger than the sum of its proper divisors (201808196773415).

999995793960745 is a wasteful number, since it uses less digits than its factorization.

999995793960745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977964.

The product of its (nonzero) digits is 421857865800, while the sum is 100.

The spelling of 999995793960745 in words is "nine hundred ninety-nine trillion, nine hundred ninety-five billion, seven hundred ninety-three million, nine hundred sixty thousand, seven hundred forty-five".