424521593081 has 2 divisors, whose sum is σ = 424521593082. Its totient is φ = 424521593080.

The previous prime is 424521593059. The next prime is 424521593107. The reversal of 424521593081 is 180395125424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319275852025 + 105245741056 = 565045^2 + 324416^2 .

It is a cyclic number.

It is not a de Polignac number, because 424521593081 - 2¹⁰ = 424521592057 is a prime.

It is a super-2 number, since 2×424521593081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424521593011) 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, 212260796540 + 212260796541.

It is an arithmetic number, because the mean of its divisors is an integer number (212260796541).

Almost surely, 2^424521593081 is an apocalyptic number.

It is an amenable number.

424521593081 is a deficient number, since it is larger than the sum of its proper divisors (1).

424521593081 is an equidigital number, since it uses as much as digits as its factorization.

424521593081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 424521593081 in words is "four hundred twenty-four billion, five hundred twenty-one million, five hundred ninety-three thousand, eighty-one".