9990526771017 has 24 divisors (see below), whose sum is σ = 15541038537024. Its totient is φ = 6147929791584.

The previous prime is 9990526771003. The next prime is 9990526771021. The reversal of 9990526771017 is 7101776250999.

9990526771017 is a `hidden beast` number, since 9 + 9 + 90 + 526 + 7 + 7 + 1 + 0 + 17 = 666.

It is not a de Polignac number, because 9990526771017 - 2¹⁸ = 9990526508873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9990526771037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8290788 + ... + 9419034.

It is an arithmetic number, because the mean of its divisors is an integer number (647543272376).

Almost surely, 2^{9990526771017} is an apocalyptic number.

It is an amenable number.

9990526771017 is a deficient number, since it is larger than the sum of its proper divisors (5550511766007).

9990526771017 is a wasteful number, since it uses less digits than its factorization.

9990526771017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203949 (or 1203946 counting only the distinct ones).

The product of its (nonzero) digits is 15002820, while the sum is 63.

The spelling of 9990526771017 in words is "nine trillion, nine hundred ninety billion, five hundred twenty-six million, seven hundred seventy-one thousand, seventeen".