9999803428232 has 12 divisors (see below), whose sum is σ = 18749648198295. Its totient is φ = 4999897242024.

The previous prime is 9999803428211. The next prime is 9999803428273. The reversal of 9999803428232 is 2328243089999.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 4999901714116 + 4999901714116 = 2236046^2 + 2236046^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2236046.

It is a super-4 number, since 4×9999803428232⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8385173 + ... + 9503195.

Almost surely, 2^{9999803428232} is an apocalyptic number.

It is an amenable number.

9999803428232 is a deficient number, since it is larger than the sum of its proper divisors (8749844770063).

9999803428232 is an frugal number, since it uses more digits than its factorization.

9999803428232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236052 (or 1118025 counting only the distinct ones).

The product of its (nonzero) digits is 120932352, while the sum is 68.

The spelling of 9999803428232 in words is "nine trillion, nine hundred ninety-nine billion, eight hundred three million, four hundred twenty-eight thousand, two hundred thirty-two".