9115711641 has 12 divisors (see below), whose sum is σ = 13197138240. Its totient is φ = 6063295320.

The previous prime is 9115711621. The next prime is 9115711651. The reversal of 9115711641 is 1461175119.

9115711641 is a `hidden beast` number, since 9 + 1 + 1 + 5 + 7 + 1 + 1 + 641 = 666.

It is not a de Polignac number, because 9115711641 - 2²³ = 9107323033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9115711596 and 9115711605.

It is not an unprimeable number, because it can be changed into a prime (9115711621) 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, 1149645 + ... + 1157546.

It is an arithmetic number, because the mean of its divisors is an integer number (1099761520).

Almost surely, 2^9115711641 is an apocalyptic number.

It is an amenable number.

9115711641 is a deficient number, since it is larger than the sum of its proper divisors (4081426599).

9115711641 is a wasteful number, since it uses less digits than its factorization.

9115711641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307636 (or 2307633 counting only the distinct ones).

The product of its digits is 7560, while the sum is 36.

The square root of 9115711641 is about 95476.2360014260. The cubic root of 9115711641 is about 2088.9603309454.

The spelling of 9115711641 in words is "nine billion, one hundred fifteen million, seven hundred eleven thousand, six hundred forty-one".