9571422065 has 8 divisors (see below), whose sum is σ = 11486254248. Its totient is φ = 7656772480.

The previous prime is 9571422053. The next prime is 9571422067. The reversal of 9571422065 is 5602241759.

It can be written as a sum of positive squares in 4 ways, for example, as 284630641 + 9286791424 = 16871^2 + 96368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9571422065 - 2¹⁴ = 9571405681 is a prime.

It is a super-2 number, since 2×9571422065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9571422067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133835 + ... + 192495.

It is an arithmetic number, because the mean of its divisors is an integer number (1435781781).

Almost surely, 2^9571422065 is an apocalyptic number.

It is an amenable number.

9571422065 is a deficient number, since it is larger than the sum of its proper divisors (1914832183).

9571422065 is a wasteful number, since it uses less digits than its factorization.

9571422065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91299.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 9571422065 is about 97833.6448518607. The cubic root of 9571422065 is about 2123.2061125402.

The spelling of 9571422065 in words is "nine billion, five hundred seventy-one million, four hundred twenty-two thousand, sixty-five".