9890078481 has 32 divisors (see below), whose sum is σ = 15170947200. Its totient is φ = 6360258240.

The previous prime is 9890078467. The next prime is 9890078501. The reversal of 9890078481 is 1848700989.

9890078481 is a `hidden beast` number, since 9 + 8 + 90 + 0 + 78 + 481 = 666.

It is not a de Polignac number, because 9890078481 - 2¹¹ = 9890076433 is a prime.

It is a super-2 number, since 2×9890078481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9890078431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963466 + ... + 973676.

It is an arithmetic number, because the mean of its divisors is an integer number (474092100).

Almost surely, 2^9890078481 is an apocalyptic number.

It is an amenable number.

9890078481 is a deficient number, since it is larger than the sum of its proper divisors (5280868719).

9890078481 is a wasteful number, since it uses less digits than its factorization.

9890078481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486 (or 11480 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 9890078481 is about 99448.8737040294. The cubic root of 9890078481 is about 2146.5116304446.

The spelling of 9890078481 in words is "nine billion, eight hundred ninety million, seventy-eight thousand, four hundred eighty-one".