63158760965 has 4 divisors (see below), whose sum is σ = 75790513164. Its totient is φ = 50527008768.

The previous prime is 63158760953. The next prime is 63158760989. The reversal of 63158760965 is 56906785136.

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 2 ways, for example, as 47972388676 + 15186372289 = 219026^2 + 123233^2 .

It is a cyclic number.

It is not a de Polignac number, because 63158760965 - 2⁴ = 63158760949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63158760965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6315876092 + ... + 6315876101.

It is an arithmetic number, because the mean of its divisors is an integer number (18947628291).

Almost surely, 2^63158760965 is an apocalyptic number.

It is an amenable number.

63158760965 is a deficient number, since it is larger than the sum of its proper divisors (12631752199).

63158760965 is a wasteful number, since it uses less digits than its factorization.

63158760965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631752198.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 63158760965 in words is "sixty-three billion, one hundred fifty-eight million, seven hundred sixty thousand, nine hundred sixty-five".