993662068871 has 2 divisors, whose sum is σ = 993662068872. Its totient is φ = 993662068870.

The previous prime is 993662068853. The next prime is 993662068877. The reversal of 993662068871 is 178860266399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 993662068871 - 2⁶ = 993662068807 is a prime.

It is a super-2 number, since 2×993662068871² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 993662068798 and 993662068807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993662068877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496831034435 + 496831034436.

It is an arithmetic number, because the mean of its divisors is an integer number (496831034436).

Almost surely, 2^993662068871 is an apocalyptic number.

993662068871 is a deficient number, since it is larger than the sum of its proper divisors (1).

993662068871 is an equidigital number, since it uses as much as digits as its factorization.

993662068871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 993662068871 in words is "nine hundred ninety-three billion, six hundred sixty-two million, sixty-eight thousand, eight hundred seventy-one".