999499986040753 has 4 divisors (see below), whose sum is σ = 999500053106020. Its totient is φ = 999499918975488.

The previous prime is 999499986040729. The next prime is 999499986040789. The reversal of 999499986040753 is 357040689994999.

999499986040753 is a nontrivial binomial coefficient, being equal to C(44710178, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 822594770513569 + 176905215527184 = 28680913^2 + 13300572^2 .

It is a 3-Lehmer number, since φ(999499986040753) divides (999499986040753-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999499986040753 is a prime.

It is a super-3 number, since 3×999499986040753³ (a number of 46 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (999499986740753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 44710177.

It is an arithmetic number, because the mean of its divisors is an integer number (249875013276505).

It is a Poulet number, since it divides 2^{999499986040752}-1.

Almost surely, 2^{999499986040753} is an apocalyptic number.

999499986040753 is the 44710177-th triangular number and also the 22355089-th hexagonal number.

999499986040753 is the 14903393-rd centered nonagonal number.

It is an amenable number.

999499986040753 is a deficient number, since it is larger than the sum of its proper divisors (67065267).

999499986040753 is a wasteful number, since it uses less digits than its factorization.

999499986040753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67065266.

The product of its (nonzero) digits is 42855402240, while the sum is 91.

The spelling of 999499986040753 in words is "nine hundred ninety-nine trillion, four hundred ninety-nine billion, nine hundred eighty-six million, forty thousand, seven hundred fifty-three".