9512642065 has 4 divisors (see below), whose sum is σ = 11415170484. Its totient is φ = 7610113648.

The previous prime is 9512642053. The next prime is 9512642071. The reversal of 9512642065 is 5602462159.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5602462159 = 7 ⋅800351737.

It can be written as a sum of positive squares in 2 ways, for example, as 2797986816 + 6714655249 = 52896^2 + 81943^2 .

It is a cyclic number.

It is not a de Polignac number, because 9512642065 - 2¹¹ = 9512640017 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951264202 + ... + 951264211.

It is an arithmetic number, because the mean of its divisors is an integer number (2853792621).

Almost surely, 2^9512642065 is an apocalyptic number.

It is an amenable number.

9512642065 is a deficient number, since it is larger than the sum of its proper divisors (1902528419).

9512642065 is a wasteful number, since it uses less digits than its factorization.

9512642065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902528418.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 9512642065 is about 97532.7743120229. The cubic root of 9512642065 is about 2118.8508416195.

The spelling of 9512642065 in words is "nine billion, five hundred twelve million, six hundred forty-two thousand, sixty-five".