64168963 has 2 divisors, whose sum is σ = 64168964. Its totient is φ = 64168962.

The previous prime is 64168957. The next prime is 64168991. The reversal of 64168963 is 36986146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64168963 is a prime.

It is not a weakly prime, because it can be changed into another prime (64168063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32084481 + 32084482.

It is an arithmetic number, because the mean of its divisors is an integer number (32084482).

Almost surely, 2^64168963 is an apocalyptic number.

64168963 is a deficient number, since it is larger than the sum of its proper divisors (1).

64168963 is an equidigital number, since it uses as much as digits as its factorization.

64168963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 64168963 is about 8010.5532268377. The cubic root of 64168963 is about 400.3516969325.

The spelling of 64168963 in words is "sixty-four million, one hundred sixty-eight thousand, nine hundred sixty-three".