9901771099 has 12 divisors (see below), whose sum is σ = 10931741352. Its totient is φ = 8961930560.

The previous prime is 9901771073. The next prime is 9901771123.

9901771099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9901771099 - 2¹⁵ = 9901738331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9901772099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152782 + ... + 207715.

It is an arithmetic number, because the mean of its divisors is an integer number (910978446).

Almost surely, 2^9901771099 is an apocalyptic number.

9901771099 is a deficient number, since it is larger than the sum of its proper divisors (1029970253).

9901771099 is a wasteful number, since it uses less digits than its factorization.

9901771099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360746 (or 360735 counting only the distinct ones).

The product of its (nonzero) digits is 321489, while the sum is 52.

The square root of 9901771099 is about 99507.6434199906. The cubic root of 9901771099 is about 2147.3572070215.

The spelling of 9901771099 in words is "nine billion, nine hundred one million, seven hundred seventy-one thousand, ninety-nine".