424851097381 has 2 divisors, whose sum is σ = 424851097382. Its totient is φ = 424851097380.

The previous prime is 424851097361. The next prime is 424851097423. The reversal of 424851097381 is 183790158424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362271572100 + 62579525281 = 601890^2 + 250159^2 .

It is a cyclic number.

It is not a de Polignac number, because 424851097381 - 2⁹ = 424851096869 is a prime.

It is a super-2 number, since 2×424851097381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424851097351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212425548690 + 212425548691.

It is an arithmetic number, because the mean of its divisors is an integer number (212425548691).

Almost surely, 2^424851097381 is an apocalyptic number.

It is an amenable number.

424851097381 is a deficient number, since it is larger than the sum of its proper divisors (1).

424851097381 is an equidigital number, since it uses as much as digits as its factorization.

424851097381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 424851097381 in words is "four hundred twenty-four billion, eight hundred fifty-one million, ninety-seven thousand, three hundred eighty-one".