424653272081 has 2 divisors, whose sum is σ = 424653272082. Its totient is φ = 424653272080.

The previous prime is 424653272051. The next prime is 424653272093. The reversal of 424653272081 is 180272356424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414788809681 + 9864462400 = 644041^2 + 99320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424653272081 is a prime.

It is a super-2 number, since 2×424653272081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424653272041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212326636040 + 212326636041.

It is an arithmetic number, because the mean of its divisors is an integer number (212326636041).

Almost surely, 2^424653272081 is an apocalyptic number.

It is an amenable number.

424653272081 is a deficient number, since it is larger than the sum of its proper divisors (1).

424653272081 is an equidigital number, since it uses as much as digits as its factorization.

424653272081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 424653272081 in words is "four hundred twenty-four billion, six hundred fifty-three million, two hundred seventy-two thousand, eighty-one".