9971134965 has 128 divisors (see below), whose sum is σ = 20096778240. Its totient is φ = 4646937600.

The previous prime is 9971134951. The next prime is 9971134993. The reversal of 9971134965 is 5694311799.

It is not a de Polignac number, because 9971134965 - 2⁴ = 9971134949 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7687197 + ... + 7688493.

It is an arithmetic number, because the mean of its divisors is an integer number (157006080).

Almost surely, 2^9971134965 is an apocalyptic number.

It is an amenable number.

9971134965 is an abundant number, since it is smaller than the sum of its proper divisors (10125643275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9971134965 is a wasteful number, since it uses less digits than its factorization.

9971134965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1514 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 9971134965 is about 99855.5705256347. The cubic root of 9971134965 is about 2152.3597645651.

The spelling of 9971134965 in words is "nine billion, nine hundred seventy-one million, one hundred thirty-four thousand, nine hundred sixty-five".