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68675224831 is a prime number
BaseRepresentation
bin111111111101010111…
…001100010011111111
320120021002112212222121
4333331113030103333
52111121324143311
651314324223411
74650556531243
oct777527142377
9216232485877
1068675224831
1127141412964
121138723ab67
136625b46915
143476ac6423
151bbe179b71
hexffd5cc4ff

68675224831 has 2 divisors, whose sum is σ = 68675224832. Its totient is φ = 68675224830.

The previous prime is 68675224811. The next prime is 68675224867. The reversal of 68675224831 is 13842257686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68675224831 - 215 = 68675192063 is a prime.

It is a super-2 number, since 2×686752248312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68675224811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34337612415 + 34337612416.

It is an arithmetic number, because the mean of its divisors is an integer number (34337612416).

Almost surely, 268675224831 is an apocalyptic number.

68675224831 is a deficient number, since it is larger than the sum of its proper divisors (1).

68675224831 is an equidigital number, since it uses as much as digits as its factorization.

68675224831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The spelling of 68675224831 in words is "sixty-eight billion, six hundred seventy-five million, two hundred twenty-four thousand, eight hundred thirty-one".