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68712532411 is a prime number
BaseRepresentation
bin111111111111100101…
…100000100110111011
320120100200202022100211
4333333211200212323
52111210402014121
651322140011551
74651521613555
oct777745404673
9216320668324
1068712532411
1127160484676
1211397830bb7
1366307a9b03
14347ba384d5
151bc2598ce1
hexfff9609bb

68712532411 has 2 divisors, whose sum is σ = 68712532412. Its totient is φ = 68712532410.

The previous prime is 68712532409. The next prime is 68712532423. The reversal of 68712532411 is 11423521786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68712532411 - 21 = 68712532409 is a prime.

It is a super-2 number, since 2×687125324112 (a number of 22 digits) contains 22 as substring.

Together with 68712532409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68712532451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34356266205 + 34356266206.

It is an arithmetic number, because the mean of its divisors is an integer number (34356266206).

Almost surely, 268712532411 is an apocalyptic number.

68712532411 is a deficient number, since it is larger than the sum of its proper divisors (1).

68712532411 is an equidigital number, since it uses as much as digits as its factorization.

68712532411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The spelling of 68712532411 in words is "sixty-eight billion, seven hundred twelve million, five hundred thirty-two thousand, four hundred eleven".