4571424707621 has 2 divisors, whose sum is σ = 4571424707622. Its totient is φ = 4571424707620.

The previous prime is 4571424707617. The next prime is 4571424707623. The reversal of 4571424707621 is 1267074241754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2874889802500 + 1696534905121 = 1695550^2 + 1302511^2 .

It is a cyclic number.

It is not a de Polignac number, because 4571424707621 - 2² = 4571424707617 is a prime.

Together with 4571424707623, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4571424707621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4571424707623) 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, 2285712353810 + 2285712353811.

It is an arithmetic number, because the mean of its divisors is an integer number (2285712353811).

Almost surely, 2^{4571424707621} is an apocalyptic number.

It is an amenable number.

4571424707621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4571424707621 is an equidigital number, since it uses as much as digits as its factorization.

4571424707621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 4571424707621 in words is "four trillion, five hundred seventy-one billion, four hundred twenty-four million, seven hundred seven thousand, six hundred twenty-one".