424851097681 has 2 divisors, whose sum is σ = 424851097682. Its totient is φ = 424851097680.

The previous prime is 424851097637. The next prime is 424851097709. The reversal of 424851097681 is 186790158424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423268649281 + 1582448400 = 650591^2 + 39780^2 .

It is a cyclic number.

It is not a de Polignac number, because 424851097681 - 2¹³ = 424851089489 is a prime.

It is a super-2 number, since 2×424851097681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424851097081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212425548840 + 212425548841.

It is an arithmetic number, because the mean of its divisors is an integer number (212425548841).

Almost surely, 2^424851097681 is an apocalyptic number.

It is an amenable number.

424851097681 is a deficient number, since it is larger than the sum of its proper divisors (1).

424851097681 is an equidigital number, since it uses as much as digits as its factorization.

424851097681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 424851097681 in words is "four hundred twenty-four billion, eight hundred fifty-one million, ninety-seven thousand, six hundred eighty-one".