833424625681 has 2 divisors, whose sum is σ = 833424625682. Its totient is φ = 833424625680.

The previous prime is 833424625679. The next prime is 833424625697. The reversal of 833424625681 is 186526424338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694922304400 + 138502321281 = 833620^2 + 372159^2 .

It is a cyclic number.

It is not a de Polignac number, because 833424625681 - 2¹ = 833424625679 is a prime.

It is a super-2 number, since 2×833424625681² (a number of 25 digits) contains 22 as substring.

Together with 833424625679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (833424665681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416712312840 + 416712312841.

It is an arithmetic number, because the mean of its divisors is an integer number (416712312841).

Almost surely, 2^833424625681 is an apocalyptic number.

It is an amenable number.

833424625681 is a deficient number, since it is larger than the sum of its proper divisors (1).

833424625681 is an equidigital number, since it uses as much as digits as its factorization.

833424625681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 52.

The spelling of 833424625681 in words is "eight hundred thirty-three billion, four hundred twenty-four million, six hundred twenty-five thousand, six hundred eighty-one".