9628984481 has 4 divisors (see below), whose sum is σ = 9760888452. Its totient is φ = 9497080512.

The previous prime is 9628984471. The next prime is 9628984487. The reversal of 9628984481 is 1844898269.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5320243600 + 4308740881 = 72940^2 + 65641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9628984481 is a prime.

It is a super-2 number, since 2×9628984481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9628984481.

It is not an unprimeable number, because it can be changed into a prime (9628984487) 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, 65951876 + ... + 65952021.

It is an arithmetic number, because the mean of its divisors is an integer number (2440222113).

Almost surely, 2^9628984481 is an apocalyptic number.

It is an amenable number.

9628984481 is a deficient number, since it is larger than the sum of its proper divisors (131903971).

9628984481 is a wasteful number, since it uses less digits than its factorization.

9628984481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131903970.

The product of its digits is 7962624, while the sum is 59.

The square root of 9628984481 is about 98127.3890460762. The cubic root of 9628984481 is about 2127.4539203857.

The spelling of 9628984481 in words is "nine billion, six hundred twenty-eight million, nine hundred eighty-four thousand, four hundred eighty-one".