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41563464821 is a prime number
BaseRepresentation
bin100110101101011000…
…000010010001110101
310222021121222210000222
4212231120002101311
51140110221333241
631032145144125
73000660423164
oct465530022165
9128247883028
1041563464821
111669954632a
12807b62b045
133bc4c65888
1420240b13db
151133dbaa4b
hex9ad602475

41563464821 has 2 divisors, whose sum is σ = 41563464822. Its totient is φ = 41563464820.

The previous prime is 41563464793. The next prime is 41563464829. The reversal of 41563464821 is 12846436514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38696397796 + 2867067025 = 196714^2 + 53545^2 .

It is a cyclic number.

It is not a de Polignac number, because 41563464821 - 210 = 41563463797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41563464829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20781732410 + 20781732411.

It is an arithmetic number, because the mean of its divisors is an integer number (20781732411).

Almost surely, 241563464821 is an apocalyptic number.

It is an amenable number.

41563464821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41563464821 is an equidigital number, since it uses as much as digits as its factorization.

41563464821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 44.

The spelling of 41563464821 in words is "forty-one billion, five hundred sixty-three million, four hundred sixty-four thousand, eight hundred twenty-one".