9981053517 has 4 divisors (see below), whose sum is σ = 13308071360. Its totient is φ = 6654035676.

The previous prime is 9981053507. The next prime is 9981053543. The reversal of 9981053517 is 7153501899.

9981053517 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9981053517 - 2¹⁴ = 9981037133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981053507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663508917 + ... + 1663508922.

It is an arithmetic number, because the mean of its divisors is an integer number (3327017840).

Almost surely, 2^9981053517 is an apocalyptic number.

It is an amenable number.

9981053517 is a deficient number, since it is larger than the sum of its proper divisors (3327017843).

9981053517 is a wasteful number, since it uses less digits than its factorization.

9981053517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327017842.

The product of its (nonzero) digits is 340200, while the sum is 48.

The square root of 9981053517 is about 99905.2226712898. Note that the first 3 decimals coincide. The cubic root of 9981053517 is about 2153.0731978122.

The spelling of 9981053517 in words is "nine billion, nine hundred eighty-one million, fifty-three thousand, five hundred seventeen".