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68073474666812 = 22195843153295159
BaseRepresentation
bin11110111101001100101110…
…10001101011000100111100
322221000202112111022201111112
433132212113101223010330
532410303434003314222
6400440304511341152
720224101106343366
oct1736462721530474
9287022474281445
1068073474666812
111a765886860a7a
127775118b217b8
132bca3bb726854
1412b4ab9273d36
157d0b321cebe2
hex3de99746b13c

68073474666812 has 24 divisors (see below), whose sum is σ = 125419968105600. Its totient is φ = 32239811269296.

The previous prime is 68073474666767. The next prime is 68073474666839. The reversal of 68073474666812 is 21866647437086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76203512 + ... + 77091647.

It is an arithmetic number, because the mean of its divisors is an integer number (5225832004400).

Almost surely, 268073474666812 is an apocalyptic number.

It is an amenable number.

68073474666812 is a deficient number, since it is larger than the sum of its proper divisors (57346493438788).

68073474666812 is a wasteful number, since it uses less digits than its factorization.

68073474666812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153301025 (or 153301023 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 68.

The spelling of 68073474666812 in words is "sixty-eight trillion, seventy-three billion, four hundred seventy-four million, six hundred sixty-six thousand, eight hundred twelve".

Divisors: 1 2 4 19 38 76 5843 11686 23372 111017 222034 444068 153295159 306590318 613180636 2912608021 5825216042 11650432084 895703614037 1791407228074 3582814456148 17018368666703 34036737333406 68073474666812