1999075989352 has 48 divisors (see below), whose sum is σ = 4297526356140. Its totient is φ = 868376890368.

The previous prime is 1999075989331. The next prime is 1999075989389. The reversal of 1999075989352 is 2539895709991.

It can be written as a sum of positive squares in 6 ways, for example, as 837565414596 + 1161510574756 = 915186^2 + 1077734^2 .

It is a super-2 number, since 2×1999075989352² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43465443 + ... + 43511410.

Almost surely, 2^{1999075989352} is an apocalyptic number.

It is an amenable number.

1999075989352 is an abundant number, since it is smaller than the sum of its proper divisors (2298450366788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1999075989352 is a wasteful number, since it uses less digits than its factorization.

1999075989352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86976902 (or 86976885 counting only the distinct ones).

The product of its (nonzero) digits is 496011600, while the sum is 76.

The spelling of 1999075989352 in words is "one trillion, nine hundred ninety-nine billion, seventy-five million, nine hundred eighty-nine thousand, three hundred fifty-two".