8971091129 has 96 divisors (see below), whose sum is σ = 12909469440. Its totient is φ = 6049105920.

The previous prime is 8971091099. The next prime is 8971091183. The reversal of 8971091129 is 9211901798.

It is not a de Polignac number, because 8971091129 - 2²⁴ = 8954313913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8971091729) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28661477 + ... + 28661789.

It is an arithmetic number, because the mean of its divisors is an integer number (134473640).

Almost surely, 2^8971091129 is an apocalyptic number.

It is an amenable number.

8971091129 is a deficient number, since it is larger than the sum of its proper divisors (3938378311).

8971091129 is a wasteful number, since it uses less digits than its factorization.

8971091129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 47.

The square root of 8971091129 is about 94715.8441286356. The cubic root of 8971091129 is about 2077.8542906721.

The spelling of 8971091129 in words is "eight billion, nine hundred seventy-one million, ninety-one thousand, one hundred twenty-nine".