20264244466831 has 2 divisors, whose sum is σ = 20264244466832. Its totient is φ = 20264244466830.

The previous prime is 20264244466709. The next prime is 20264244466859. The reversal of 20264244466831 is 13866444246202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20264244466831 is a prime.

It is a super-4 number, since 4×20264244466831⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20264244466891) 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, 10132122233415 + 10132122233416.

It is an arithmetic number, because the mean of its divisors is an integer number (10132122233416).

Almost surely, 2^{20264244466831} is an apocalyptic number.

20264244466831 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264244466831 is an equidigital number, since it uses as much as digits as its factorization.

20264244466831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10616832, while the sum is 52.

The spelling of 20264244466831 in words is "twenty trillion, two hundred sixty-four billion, two hundred forty-four million, four hundred sixty-six thousand, eight hundred thirty-one".