17640916963 has 2 divisors, whose sum is σ = 17640916964. Its totient is φ = 17640916962.

The previous prime is 17640916933. The next prime is 17640916991. The reversal of 17640916963 is 36961904671.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17640916963 - 2¹⁷ = 17640785891 is a prime.

It is a super-2 number, since 2×17640916963² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17640916963.

It is not a weakly prime, because it can be changed into another prime (17640916903) by changing a digit.

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 as a sum of consecutive naturals, namely, 8820458481 + 8820458482.

It is an arithmetic number, because the mean of its divisors is an integer number (8820458482).

Almost surely, 2^17640916963 is an apocalyptic number.

17640916963 is a deficient number, since it is larger than the sum of its proper divisors (1).

17640916963 is an equidigital number, since it uses as much as digits as its factorization.

17640916963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 17640916963 in words is "seventeen billion, six hundred forty million, nine hundred sixteen thousand, nine hundred sixty-three".