9523652165138 has 4 divisors (see below), whose sum is σ = 14285478247710. Its totient is φ = 4761826082568.

The previous prime is 9523652165123. The next prime is 9523652165147. The reversal of 9523652165138 is 8315612563259.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9038098233649 + 485553931489 = 3006343^2 + 696817^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2380913041283 + ... + 2380913041286.

Almost surely, 2^{9523652165138} is an apocalyptic number.

9523652165138 is a deficient number, since it is larger than the sum of its proper divisors (4761826082572).

9523652165138 is a wasteful number, since it uses less digits than its factorization.

9523652165138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761826082571.

The product of its digits is 11664000, while the sum is 56.

The spelling of 9523652165138 in words is "nine trillion, five hundred twenty-three billion, six hundred fifty-two million, one hundred sixty-five thousand, one hundred thirty-eight".