6465971028823 has 2 divisors, whose sum is σ = 6465971028824. Its totient is φ = 6465971028822.

The previous prime is 6465971028821. The next prime is 6465971028859. The reversal of 6465971028823 is 3288201795646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6465971028823 - 2¹ = 6465971028821 is a prime.

It is a super-3 number, since 3×6465971028823³ (a number of 39 digits) contains 333 as substring.

Together with 6465971028821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6465971028821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232985514411 + 3232985514412.

It is an arithmetic number, because the mean of its divisors is an integer number (3232985514412).

It is a 1-persistent number, because it is pandigital, but 2⋅6465971028823 = 12931942057646 is not.

Almost surely, 2^{6465971028823} is an apocalyptic number.

6465971028823 is a deficient number, since it is larger than the sum of its proper divisors (1).

6465971028823 is an equidigital number, since it uses as much as digits as its factorization.

6465971028823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 6465971028823 in words is "six trillion, four hundred sixty-five billion, nine hundred seventy-one million, twenty-eight thousand, eight hundred twenty-three".