164280347813 has 2 divisors, whose sum is σ = 164280347814. Its totient is φ = 164280347812.

The previous prime is 164280347783. The next prime is 164280347831. The reversal of 164280347813 is 318743082461.

Together with next prime (164280347831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164200817089 + 79530724 = 405217^2 + 8918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164280347813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164280347713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82140173906 + 82140173907.

It is an arithmetic number, because the mean of its divisors is an integer number (82140173907).

Almost surely, 2^164280347813 is an apocalyptic number.

It is an amenable number.

164280347813 is a deficient number, since it is larger than the sum of its proper divisors (1).

164280347813 is an equidigital number, since it uses as much as digits as its factorization.

164280347813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 164280347813 in words is "one hundred sixty-four billion, two hundred eighty million, three hundred forty-seven thousand, eight hundred thirteen".