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68745854786 = 2761774110399
BaseRepresentation
bin100000000000110010…
…0100111111101000010
320120110000110021001212
41000001210213331002
52111242414323121
651325330130122
74652405060420
oct1000144477502
9216400407055
1068745854786
1127178274224
12113a6a20942
1366376760ab
143482230110
151bc547c25b
hex1001927f42

68745854786 has 32 divisors (see below), whose sum is σ = 119808998400. Its totient is φ = 28972987200.

The previous prime is 68745854783. The next prime is 68745854803.

68745854786 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (68745854783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6605615 + ... + 6616013.

It is an arithmetic number, because the mean of its divisors is an integer number (3744031200).

Almost surely, 268745854786 is an apocalyptic number.

68745854786 is a deficient number, since it is larger than the sum of its proper divisors (51063143614).

68745854786 is a wasteful number, since it uses less digits than its factorization.

68745854786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18210.

The product of its digits is 361267200, while the sum is 68.

The spelling of 68745854786 in words is "sixty-eight billion, seven hundred forty-five million, eight hundred fifty-four thousand, seven hundred eighty-six".

Divisors: 1 2 7 14 61 122 427 854 7741 10399 15482 20798 54187 72793 108374 145586 472201 634339 944402 1268678 3305407 4440373 6610814 8880746 80498659 160997318 563490613 1126981226 4910418199 9820836398 34372927393 68745854786