812479653347333 has 2 divisors, whose sum is σ = 812479653347334. Its totient is φ = 812479653347332.

The previous prime is 812479653347293. The next prime is 812479653347357. The reversal of 812479653347333 is 333743356974218.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810403281861889 + 2076371485444 = 28467583^2 + 1440962^2 .

It is a cyclic number.

It is not a de Polignac number, because 812479653347333 - 2¹⁴ = 812479653330949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812479653347633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406239826673666 + 406239826673667.

It is an arithmetic number, because the mean of its divisors is an integer number (406239826673667).

Almost surely, 2^{812479653347333} is an apocalyptic number.

It is an amenable number.

812479653347333 is a deficient number, since it is larger than the sum of its proper divisors (1).

812479653347333 is an equidigital number, since it uses as much as digits as its factorization.

812479653347333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 823011840, while the sum is 68.

The spelling of 812479653347333 in words is "eight hundred twelve trillion, four hundred seventy-nine billion, six hundred fifty-three million, three hundred forty-seven thousand, three hundred thirty-three".