999989072596 has 12 divisors (see below), whose sum is σ = 1752032443252. Its totient is φ = 499408374528.

The previous prime is 999989072531. The next prime is 999989072629. The reversal of 999989072596 is 695270989999.

It can be written as a sum of positive squares in 2 ways, for example, as 372905635600 + 627083436996 = 610660^2 + 791886^2 .

It is a super-2 number, since 2×999989072596² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146536605 + ... + 146543428.

Almost surely, 2^999989072596 is an apocalyptic number.

It is an amenable number.

999989072596 is a deficient number, since it is larger than the sum of its proper divisors (752043370656).

999989072596 is a wasteful number, since it uses less digits than its factorization.

999989072596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293080890 (or 293080888 counting only the distinct ones).

The product of its (nonzero) digits is 1785641760, while the sum is 82.

The spelling of 999989072596 in words is "nine hundred ninety-nine billion, nine hundred eighty-nine million, seventy-two thousand, five hundred ninety-six".