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488486666669 is a prime number
BaseRepresentation
bin1110001101111000001…
…00110000000110101101
31201200212110211210001112
413012330010300012231
531000410041313134
61012224020321405
750202104105021
oct7067404600655
91650773753045
10488486666669
11179190a96791
127a809243265
13370aaa804c1
14199000ca381
15ca8ee951ce
hex71bc1301ad

488486666669 has 2 divisors, whose sum is σ = 488486666670. Its totient is φ = 488486666668.

The previous prime is 488486666653. The next prime is 488486666683. The reversal of 488486666669 is 966666684884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327876486025 + 160610180644 = 572605^2 + 400762^2 .

It is a cyclic number.

It is not a de Polignac number, because 488486666669 - 24 = 488486666653 is a prime.

It is a super-2 number, since 2×4884866666692 (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 488486666669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488486666699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244243333334 + 244243333335.

It is an arithmetic number, because the mean of its divisors is an integer number (244243333335).

Almost surely, 2488486666669 is an apocalyptic number.

It is an amenable number.

488486666669 is a deficient number, since it is larger than the sum of its proper divisors (1).

488486666669 is an equidigital number, since it uses as much as digits as its factorization.

488486666669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3439853568, while the sum is 77.

The spelling of 488486666669 in words is "four hundred eighty-eight billion, four hundred eighty-six million, six hundred sixty-six thousand, six hundred sixty-nine".