9961085481 has 8 divisors (see below), whose sum is σ = 13282087104. Its totient is φ = 6640403760.

The previous prime is 9961085473. The next prime is 9961085567. The reversal of 9961085481 is 1845801699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9961085481 - 2³ = 9961085473 is a prime.

It is a super-2 number, since 2×9961085481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9961085411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5836 + ... + 141266.

It is an arithmetic number, because the mean of its divisors is an integer number (1660260888).

Almost surely, 2^9961085481 is an apocalyptic number.

It is an amenable number.

9961085481 is a deficient number, since it is larger than the sum of its proper divisors (3321001623).

9961085481 is a wasteful number, since it uses less digits than its factorization.

9961085481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159951.

The product of its (nonzero) digits is 622080, while the sum is 51.

The square root of 9961085481 is about 99805.2377433169. The cubic root of 9961085481 is about 2151.6364308005.

The spelling of 9961085481 in words is "nine billion, nine hundred sixty-one million, eighty-five thousand, four hundred eighty-one".